diff --git a/.travis.yml b/.travis.yml
index 37b543d..2a4ca03 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,15 +5,14 @@ cache:
     - $HOME/.composer/cache
 
 php:
-  - '5.3'
   - '5.4'
   - '5.5'
   - '5.6'
   - '7.0'
 
 before_script:
-    - flags="--prefer-dist --no-dev -o"
+    - flags="-o"
     - composer install $flags
-    - wget -c -O phpunit.xml https://goo.gl/yZHStN
+    - cp phpunit.xml.dist phpunit.xml
 
 script: phpunit
diff --git a/README.md b/README.md
index 48785d9..d4d3877 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ Use [API documentation](http://retailcrm.github.io/api-client-php)
 
 ## Requirements
 
-* PHP 5.3 and above
+* PHP 5.4 and above
 * PHP's cURL support
 
 ## Install
@@ -29,12 +29,12 @@ require 'path/to/vendor/autoload.php';
 ```php
 $client = new \RetailCrm\ApiClient(
     'https://demo.retailcrm.ru',
-    'T9DMPvuNt7FQJMszHUdG8Fkt6xHsqngH'
+    'T9DMPvuNt7FQJMszHUdG8Fkt6xHsqngH',
+    'v5'
 );
 
-
 try {
-    $response = $client->ordersGet('M-2342');
+    $response = $client->request->ordersGet('M-2342');
 } catch (\RetailCrm\Exception\CurlException $e) {
     echo "Connection error: " . $e->getMessage();
 }
@@ -63,12 +63,13 @@ if ($response->isSuccessful()) {
 ```php
 
 $client = new \RetailCrm\ApiClient(
-    'https://demo.retailcrm.pro',
-    'T9DMPvuNt7FQJMszHUdG8Fkt6xHsqngH'
+    'https://demo.retailcrm.ru',
+    'T9DMPvuNt7FQJMszHUdG8Fkt6xHsqngH',
+    'v4'
 );
 
 try {
-    $response = $client->ordersCreate(array(
+    $response = $client->request->ordersCreate(array(
         'externalId' => 'some-shop-order-id',
         'firstName' => 'Vasily',
         'lastName' => 'Pupkin',
diff --git a/README.ru.md b/README.ru.md
index c9819d3..6b5d1ea 100644
--- a/README.ru.md
+++ b/README.ru.md
@@ -6,7 +6,7 @@ PHP-клиент для работы с [retailCRM API](http://www.retailcrm.ru/
 
 ## Обязательные требования
 
-* PHP версии 5.3 и выше
+* PHP версии 5.4 и выше
 * PHP-расширение cURL
 
 ## Установка
@@ -31,12 +31,12 @@ require 'path/to/vendor/autoload.php';
 ```php
 $client = new \RetailCrm\ApiClient(
     'https://demo.retailcrm.ru',
-    'T9DMPvuNt7FQJMszHUdG8Fkt6xHsqngH'
+    'T9DMPvuNt7FQJMszHUdG8Fkt6xHsqngH',
+    'v5'
 );
 
-
 try {
-    $response = $client->ordersGet('M-2342');
+    $response = $client-request->ordersGet('M-2342');
 } catch (\RetailCrm\Exception\CurlException $e) {
     echo "Сетевые проблемы. Ошибка подключения к retailCRM: " . $e->getMessage();
 }
@@ -66,11 +66,12 @@ if ($response->isSuccessful()) {
 
 $client = new \RetailCrm\ApiClient(
     'https://demo.retailcrm.ru',
-    'T9DMPvuNt7FQJMszHUdG8Fkt6xHsqngH'
+    'T9DMPvuNt7FQJMszHUdG8Fkt6xHsqngH',
+    'v4'
 );
 
 try {
-    $response = $client->ordersCreate(array(
+    $response = $client-request->ordersCreate(array(
         'externalId' => 'some-shop-order-id',
         'firstName' => 'Vasily',
         'lastName' => 'Pupkin',
diff --git a/composer.json b/composer.json
index 135ed47..daa8fd0 100644
--- a/composer.json
+++ b/composer.json
@@ -8,15 +8,15 @@
     "authors": [
         {
             "name": "retailCRM",
-            "email": "support@retailcrm.pro"
+            "email": "support@retailcrm.ru"
         }
     ],
     "require": {
-        "php": ">=5.3.0",
+        "php": ">=5.4.0",
         "ext-curl": "*"
     },
     "require-dev": {
-        "phpunit/phpunit": "5.*",
+        "phpunit/phpunit": "3.7.*",
         "squizlabs/php_codesniffer": "3.*"
     },
     "support": {
diff --git a/lib/RetailCrm/ApiClient.php b/lib/RetailCrm/ApiClient.php
index 73cca2e..b589f15 100644
--- a/lib/RetailCrm/ApiClient.php
+++ b/lib/RetailCrm/ApiClient.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * PHP version 5.3
+ * PHP version 5.4
  *
  * API client class
  *
@@ -14,12 +14,12 @@
 
 namespace RetailCrm;
 
-use function json_encode;
-use RetailCrm\Http\Client;
-use RetailCrm\Response\ApiResponse;
+use RetailCrm\Client\ApiVersion3;
+use RetailCrm\Client\ApiVersion4;
+use RetailCrm\Client\ApiVersion5;
 
 /**
- * PHP version 5.3
+ * PHP version 5.4
  *
  * API client class
  *
@@ -31,2377 +31,42 @@ use RetailCrm\Response\ApiResponse;
  */
 class ApiClient
 {
-
-    const VERSION = 'v5';
-
-    protected $client;
-
-    /**
-     * Site code
-     */
-    protected $siteCode;
-
-    /**
-     * Client creating
-     *
-     * @param string $url    api url
-     * @param string $apiKey api key
-     * @param string $site   site code
-     *
-     * @throws \InvalidArgumentException
-     */
-    public function __construct($url, $apiKey, $site = null)
-    {
-        if ('/' !== $url[strlen($url) - 1]) {
-            $url .= '/';
-        }
-
-        $url = $url . 'api/' . self::VERSION;
-
-        $this->client = new Client($url, array('apiKey' => $apiKey));
-        $this->siteCode = $site;
-    }
-
-    /**
-     * Returns users list
-     *
-     * @param array $filter
-     * @param null  $page
-     * @param null  $limit
-     *
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \InvalidArgumentException
-     *
-     * @return ApiResponse
-     */
-    public function usersList(array $filter = array(), $page = null, $limit = null)
-    {
-        $parameters = array();
-
-        if (count($filter)) {
-            $parameters['filter'] = $filter;
-        }
-        if (null !== $page) {
-            $parameters['page'] = (int) $page;
-        }
-        if (null !== $limit) {
-            $parameters['limit'] = (int) $limit;
-        }
-
-        return $this->client->makeRequest(
-            '/users',
-            Client::METHOD_GET,
-            $parameters
-        );
-    }
-
-    /**
-     * Get user groups
-     *
-     * @param null $page
-     * @param null $limit
-     *
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     * @throws \RetailCrm\Exception\CurlException
-     *
-     * @return ApiResponse
-     */
-    public function usersGroups($page = null, $limit = null)
-    {
-        $parameters = array();
-
-        if (null !== $page) {
-            $parameters['page'] = (int) $page;
-        }
-        if (null !== $limit) {
-            $parameters['limit'] = (int) $limit;
-        }
-
-        return $this->client->makeRequest(
-            '/user-groups',
-            Client::METHOD_GET,
-            $parameters
-        );
-    }
-
-    /**
-     * Returns user data
-     *
-     * @param integer $id user ID
-     *
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \InvalidArgumentException
-     *
-     * @return ApiResponse
-     */
-    public function usersGet($id)
-    {
-        return $this->client->makeRequest("/users/$id", Client::METHOD_GET);
-    }
-
-    /**
-     * Change user status
-     *
-     * @param integer $id     user ID
-     * @param string  $status user status
-     *
-     * @return ApiResponse
-     */
-    public function usersStatus($id, $status)
-    {
-        $statuses = array("free", "busy", "dinner", "break");
-
-        if (empty($status) || !in_array($status, $statuses)) {
-            throw new \InvalidArgumentException(
-                'Parameter `status` must be not empty & must be equal one of these values: free|busy|dinner|break'
-            );
-        }
-
-        return $this->client->makeRequest(
-            "/users/$id/status",
-            Client::METHOD_POST,
-            array('status' => $status)
-        );
-    }
-
-    /**
-     * Returns filtered orders list
-     *
-     * @param array $filter (default: array())
-     * @param int   $page   (default: null)
-     * @param int   $limit  (default: null)
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function ordersList(array $filter = array(), $page = null, $limit = null)
-    {
-        $parameters = array();
-
-        if (count($filter)) {
-            $parameters['filter'] = $filter;
-        }
-        if (null !== $page) {
-            $parameters['page'] = (int) $page;
-        }
-        if (null !== $limit) {
-            $parameters['limit'] = (int) $limit;
-        }
-
-        return $this->client->makeRequest(
-            '/orders',
-            Client::METHOD_GET,
-            $parameters
-        );
-    }
-
-    /**
-     * Combine orders
-     *
-     * @param string $technique
-     * @param array  $order
-     * @param array  $resultOrder
-     *
-     * @return ApiResponse
-     */
-    public function ordersCombine($order, $resultOrder, $technique = 'ours')
-    {
-        $techniques = array('ours', 'summ', 'theirs');
-
-        if (!count($order) || !count($resultOrder)) {
-            throw new \InvalidArgumentException(
-                'Parameters `order` & `resultOrder` must contains a data'
-            );
-        }
-
-        if (!in_array($technique, $techniques)) {
-            throw new \InvalidArgumentException(
-                'Parameter `technique` must be on of ours|summ|theirs'
-            );
-        }
-
-        return $this->client->makeRequest(
-            '/orders/combine',
-            Client::METHOD_POST,
-            array(
-                'technique' => $technique,
-                'order' => json_encode($order),
-                'resultOrder' => json_encode($resultOrder)
-            )
-        );
-    }
-
-    /**
-     * Create an order
-     *
-     * @param array  $order order data
-     * @param string $site  (default: null)
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function ordersCreate(array $order, $site = null)
-    {
-        if (!count($order)) {
-            throw new \InvalidArgumentException(
-                'Parameter `order` must contains a data'
-            );
-        }
-
-        return $this->client->makeRequest(
-            '/orders/create',
-            Client::METHOD_POST,
-            $this->fillSite($site, array('order' => json_encode($order)))
-        );
-    }
-
-    /**
-     * Save order IDs' (id and externalId) association into CRM
-     *
-     * @param array $ids order identificators
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function ordersFixExternalIds(array $ids)
-    {
-        if (! count($ids)) {
-            throw new \InvalidArgumentException(
-                'Method parameter must contains at least one IDs pair'
-            );
-        }
-
-        return $this->client->makeRequest(
-            '/orders/fix-external-ids',
-            Client::METHOD_POST,
-            array('orders' => json_encode($ids)
-            )
-        );
-    }
-
-    /**
-     * Returns statuses of the orders
-     *
-     * @param array $ids         (default: array())
-     * @param array $externalIds (default: array())
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function ordersStatuses(array $ids = array(), array $externalIds = array())
-    {
-        $parameters = array();
-
-        if (count($ids)) {
-            $parameters['ids'] = $ids;
-        }
-        if (count($externalIds)) {
-            $parameters['externalIds'] = $externalIds;
-        }
-
-        return $this->client->makeRequest(
-            '/orders/statuses',
-            Client::METHOD_GET,
-            $parameters
-        );
-    }
-
-    /**
-     * Upload array of the orders
-     *
-     * @param array  $orders array of orders
-     * @param string $site   (default: null)
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function ordersUpload(array $orders, $site = null)
-    {
-        if (!count($orders)) {
-            throw new \InvalidArgumentException(
-                'Parameter `orders` must contains array of the orders'
-            );
-        }
-
-        return $this->client->makeRequest(
-            '/orders/upload',
-            Client::METHOD_POST,
-            $this->fillSite($site, array('orders' => json_encode($orders)))
-        );
-    }
-
-    /**
-     * Get order by id or externalId
-     *
-     * @param string $id   order identificator
-     * @param string $by   (default: 'externalId')
-     * @param string $site (default: null)
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function ordersGet($id, $by = 'externalId', $site = null)
-    {
-        $this->checkIdParameter($by);
-
-        return $this->client->makeRequest(
-            "/orders/$id",
-            Client::METHOD_GET,
-            $this->fillSite($site, array('by' => $by))
-        );
-    }
-
-    /**
-     * Edit an order
-     *
-     * @param array  $order order data
-     * @param string $by    (default: 'externalId')
-     * @param string $site  (default: null)
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function ordersEdit(array $order, $by = 'externalId', $site = null)
-    {
-        if (!count($order)) {
-            throw new \InvalidArgumentException(
-                'Parameter `order` must contains a data'
-            );
-        }
-
-        $this->checkIdParameter($by);
-
-        if (!array_key_exists($by, $order)) {
-            throw new \InvalidArgumentException(
-                sprintf('Order array must contain the "%s" parameter.', $by)
-            );
-        }
-
-        return $this->client->makeRequest(
-            sprintf('/orders/%s/edit', $order[$by]),
-            Client::METHOD_POST,
-            $this->fillSite(
-                $site,
-                array('order' => json_encode($order), 'by' => $by)
-            )
-        );
-    }
-
-    /**
-     * Get orders history
-     * @param array $filter
-     * @param null $page
-     * @param null $limit
-     *
-     * @return ApiResponse
-     */
-    public function ordersHistory(array $filter = array(), $page = null, $limit = null)
-    {
-        $parameters = array();
-
-        if (count($filter)) {
-            $parameters['filter'] = $filter;
-        }
-        if (null !== $page) {
-            $parameters['page'] = (int) $page;
-        }
-        if (null !== $limit) {
-            $parameters['limit'] = (int) $limit;
-        }
-
-        return $this->client->makeRequest(
-            '/orders/history',
-            Client::METHOD_GET,
-            $parameters
-        );
-    }
-
-    /**
-     * Create an order payment
-     *
-     * @param array $payment order data
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function ordersPaymentCreate(array $payment)
-    {
-        if (!count($payment)) {
-            throw new \InvalidArgumentException(
-                'Parameter `payment` must contains a data'
-            );
-        }
-
-        return $this->client->makeRequest(
-            '/orders/payments/create',
-            Client::METHOD_POST,
-            array('payment' => json_encode($payment))
-        );
-    }
-
-    /**
-     * Edit an order payment
-     *
-     * @param array  $payment order data
-     * @param string $by      by key
-     * @param null   $site    site code
-     *
-     * @return ApiResponse
-     */
-    public function ordersPaymentEdit(array $payment, $by = 'id', $site = null)
-    {
-        if (!count($payment)) {
-            throw new \InvalidArgumentException(
-                'Parameter `payment` must contains a data'
-            );
-        }
-
-        $this->checkIdParameter($by);
-
-        if (!array_key_exists($by, $payment)) {
-            throw new \InvalidArgumentException(
-                sprintf('Order array must contain the "%s" parameter.', $by)
-            );
-        }
-
-        return $this->client->makeRequest(
-            sprintf('/orders/payments/%s/edit', $payment[$by]),
-            Client::METHOD_POST,
-            $this->fillSite(
-                $site,
-                array('payment' => json_encode($payment), 'by' => $by)
-            )
-        );
-    }
-
-    /**
-     * Returns filtered customers list
-     *
-     * @param array $filter (default: array())
-     * @param int   $page   (default: null)
-     * @param int   $limit  (default: null)
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function customersList(array $filter = array(), $page = null, $limit = null)
-    {
-        $parameters = array();
-
-        if (count($filter)) {
-            $parameters['filter'] = $filter;
-        }
-        if (null !== $page) {
-            $parameters['page'] = (int) $page;
-        }
-        if (null !== $limit) {
-            $parameters['limit'] = (int) $limit;
-        }
-
-        return $this->client->makeRequest(
-            '/customers',
-            Client::METHOD_GET,
-            $parameters
-        );
-    }
-
-    /**
-     * Combine customers
-     *
-     * @param array $customers
-     * @param array $resultCustomer
-     *
-     * @return ApiResponse
-     */
-    public function customersCombine(array $customers, $resultCustomer)
-    {
-
-        if (!count($customers) || !count($resultCustomer)) {
-            throw new \InvalidArgumentException(
-                'Parameters `customers` & `resultCustomer` must contains a data'
-            );
-        }
-
-        return $this->client->makeRequest(
-            '/customers/combine',
-            Client::METHOD_POST,
-            array(
-                'customers' => json_encode($customers),
-                'resultCustomer' => json_encode($resultCustomer)
-            )
-        );
-    }
-
-    /**
-     * Create a customer
-     *
-     * @param array  $customer customer data
-     * @param string $site     (default: null)
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function customersCreate(array $customer, $site = null)
-    {
-        if (! count($customer)) {
-            throw new \InvalidArgumentException(
-                'Parameter `customer` must contains a data'
-            );
-        }
-
-        return $this->client->makeRequest(
-            '/customers/create',
-            Client::METHOD_POST,
-            $this->fillSite($site, array('customer' => json_encode($customer)))
-        );
-    }
-
-    /**
-     * Save customer IDs' (id and externalId) association in the CRM
-     *
-     * @param array $ids ids mapping
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function customersFixExternalIds(array $ids)
-    {
-        if (! count($ids)) {
-            throw new \InvalidArgumentException(
-                'Method parameter must contains at least one IDs pair'
-            );
-        }
-
-        return $this->client->makeRequest(
-            '/customers/fix-external-ids',
-            Client::METHOD_POST,
-            array('customers' => json_encode($ids))
-        );
-    }
-
-    /**
-     * Upload array of the customers
-     *
-     * @param array  $customers array of customers
-     * @param string $site      (default: null)
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function customersUpload(array $customers, $site = null)
-    {
-        if (! count($customers)) {
-            throw new \InvalidArgumentException(
-                'Parameter `customers` must contains array of the customers'
-            );
-        }
-
-        return $this->client->makeRequest(
-            '/customers/upload',
-            Client::METHOD_POST,
-            $this->fillSite($site, array('customers' => json_encode($customers)))
-        );
-    }
-
-    /**
-     * Get customer by id or externalId
-     *
-     * @param string $id   customer identificator
-     * @param string $by   (default: 'externalId')
-     * @param string $site (default: null)
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function customersGet($id, $by = 'externalId', $site = null)
-    {
-        $this->checkIdParameter($by);
-
-        return $this->client->makeRequest(
-            "/customers/$id",
-            Client::METHOD_GET,
-            $this->fillSite($site, array('by' => $by))
-        );
-    }
-
-    /**
-     * Edit a customer
-     *
-     * @param array  $customer customer data
-     * @param string $by       (default: 'externalId')
-     * @param string $site     (default: null)
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function customersEdit(array $customer, $by = 'externalId', $site = null)
-    {
-        if (!count($customer)) {
-            throw new \InvalidArgumentException(
-                'Parameter `customer` must contains a data'
-            );
-        }
-
-        $this->checkIdParameter($by);
-
-        if (!array_key_exists($by, $customer)) {
-            throw new \InvalidArgumentException(
-                sprintf('Customer array must contain the "%s" parameter.', $by)
-            );
-        }
-
-        return $this->client->makeRequest(
-            sprintf('/customers/%s/edit', $customer[$by]),
-            Client::METHOD_POST,
-            $this->fillSite(
-                $site,
-                array('customer' => json_encode($customer), 'by' => $by)
-            )
-        );
-    }
-
-    /**
-     * Get customers history
-     * @param array $filter
-     * @param null $page
-     * @param null $limit
-     *
-     * @return ApiResponse
-     */
-    public function customersHistory(array $filter = array(), $page = null, $limit = null)
-    {
-        $parameters = array();
-
-        if (count($filter)) {
-            $parameters['filter'] = $filter;
-        }
-        if (null !== $page) {
-            $parameters['page'] = (int) $page;
-        }
-        if (null !== $limit) {
-            $parameters['limit'] = (int) $limit;
-        }
-
-        return $this->client->makeRequest(
-            '/customers/history',
-            Client::METHOD_GET,
-            $parameters
-        );
-    }
-
-    /**
-     * Get orders assembly list
-     *
-     * @param array $filter (default: array())
-     * @param int   $page   (default: null)
-     * @param int   $limit  (default: null)
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function ordersPacksList(array $filter = array(), $page = null, $limit = null)
-    {
-        $parameters = array();
-
-        if (count($filter)) {
-            $parameters['filter'] = $filter;
-        }
-        if (null !== $page) {
-            $parameters['page'] = (int) $page;
-        }
-        if (null !== $limit) {
-            $parameters['limit'] = (int) $limit;
-        }
-
-        return $this->client->makeRequest(
-            '/orders/packs',
-            Client::METHOD_GET,
-            $parameters
-        );
-    }
-
-    /**
-     * Create orders assembly
-     *
-     * @param array  $pack pack data
-     * @param string $site (default: null)
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function ordersPacksCreate(array $pack, $site = null)
-    {
-        if (!count($pack)) {
-            throw new \InvalidArgumentException(
-                'Parameter `pack` must contains a data'
-            );
-        }
-
-        return $this->client->makeRequest(
-            '/orders/packs/create',
-            Client::METHOD_POST,
-            $this->fillSite($site, array('pack' => json_encode($pack)))
-        );
-    }
-
-    /**
-     * Get orders assembly history
-     *
-     * @param array $filter (default: array())
-     * @param int   $page   (default: null)
-     * @param int   $limit  (default: null)
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function ordersPacksHistory(array $filter = array(), $page = null, $limit = null)
-    {
-        $parameters = array();
-
-        if (count($filter)) {
-            $parameters['filter'] = $filter;
-        }
-        if (null !== $page) {
-            $parameters['page'] = (int) $page;
-        }
-        if (null !== $limit) {
-            $parameters['limit'] = (int) $limit;
-        }
-
-        return $this->client->makeRequest(
-            '/orders/packs/history',
-            Client::METHOD_GET,
-            $parameters
-        );
-    }
-
-    /**
-     * Get orders assembly by id
-     *
-     * @param string $id pack identificator
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function ordersPacksGet($id)
-    {
-        if (empty($id)) {
-            throw new \InvalidArgumentException('Parameter `id` must be set');
-        }
-
-        return $this->client->makeRequest(
-            "/orders/packs/$id",
-            Client::METHOD_GET
-        );
-    }
-
-    /**
-     * Delete orders assembly by id
-     *
-     * @param string $id pack identificator
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function ordersPacksDelete($id)
-    {
-        if (empty($id)) {
-            throw new \InvalidArgumentException('Parameter `id` must be set');
-        }
-
-        return $this->client->makeRequest(
-            sprintf('/orders/packs/%s/delete', $id),
-            Client::METHOD_POST
-        );
-    }
-
-    /**
-     * Edit orders assembly
-     *
-     * @param array  $pack pack data
-     * @param string $site (default: null)
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function ordersPacksEdit(array $pack, $site = null)
-    {
-        if (!count($pack) || empty($pack['id'])) {
-            throw new \InvalidArgumentException(
-                'Parameter `pack` must contains a data & pack `id` must be set'
-            );
-        }
-
-        return $this->client->makeRequest(
-            sprintf('/orders/packs/%s/edit', $pack['id']),
-            Client::METHOD_POST,
-            $this->fillSite($site, array('pack' => json_encode($pack)))
-        );
-    }
-
-    /**
-     * Get purchace prices & stock balance
-     *
-     * @param array $filter (default: array())
-     * @param int   $page   (default: null)
-     * @param int   $limit  (default: null)
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function storeInventories(array $filter = array(), $page = null, $limit = null)
-    {
-        $parameters = array();
-
-        if (count($filter)) {
-            $parameters['filter'] = $filter;
-        }
-        if (null !== $page) {
-            $parameters['page'] = (int) $page;
-        }
-        if (null !== $limit) {
-            $parameters['limit'] = (int) $limit;
-        }
-
-        return $this->client->makeRequest(
-            '/store/inventories',
-            Client::METHOD_GET,
-            $parameters
-        );
-    }
-
-    /**
-     * Get store settings
-     *
-     * @param string $code get settings code
-     *
-     * @return ApiResponse
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \InvalidArgumentException
-     *
-     * @return ApiResponse
-     */
-    public function storeSettingsGet($code)
-    {
-        if (empty($code)) {
-            throw new \InvalidArgumentException('Parameter `code` must be set');
-        }
-
-        return $this->client->makeRequest(
-            "/store/setting/$code",
-            Client::METHOD_GET
-        );
-    }
-
-    /**
-     * Edit store configuration
-     *
-     * @param array $configuration
-     *
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \InvalidArgumentException
-     *
-     * @return ApiResponse
-     */
-    public function storeSettingsEdit(array $configuration)
-    {
-        if (!count($configuration) || empty($configuration['code'])) {
-            throw new \InvalidArgumentException(
-                'Parameter `configuration` must contains a data & configuration `code` must be set'
-            );
-        }
-
-        return $this->client->makeRequest(
-            sprintf('/store/setting/%s/edit', $configuration['code']),
-            Client::METHOD_POST,
-            array('configuration' => json_encode($configuration))
-        );
-    }
-
-    /**
-     * Upload store inventories
-     *
-     * @param array  $offers offers data
-     * @param string $site   (default: null)
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function storeInventoriesUpload(array $offers, $site = null)
-    {
-        if (!count($offers)) {
-            throw new \InvalidArgumentException(
-                'Parameter `offers` must contains array of the offers'
-            );
-        }
-
-        return $this->client->makeRequest(
-            '/store/inventories/upload',
-            Client::METHOD_POST,
-            $this->fillSite($site, array('offers' => json_encode($offers)))
-        );
-    }
-
-    /**
-     * Upload store prices
-     *
-     * @param array  $prices prices data
-     * @param string $site   default: null)
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function storePricesUpload(array $prices, $site = null)
-    {
-        if (!count($prices)) {
-            throw new \InvalidArgumentException(
-                'Parameter `prices` must contains array of the prices'
-            );
-        }
-
-        return $this->client->makeRequest(
-            '/store/prices/upload',
-            Client::METHOD_POST,
-            $this->fillSite($site, array('prices' => json_encode($prices)))
-        );
-    }
-
-    /**
-     * Get products
-     *
-     * @param array $filter (default: array())
-     * @param int   $page   (default: null)
-     * @param int   $limit  (default: null)
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function storeProducts(array $filter = array(), $page = null, $limit = null)
-    {
-        $parameters = array();
-
-        if (count($filter)) {
-            $parameters['filter'] = $filter;
-        }
-        if (null !== $page) {
-            $parameters['page'] = (int) $page;
-        }
-        if (null !== $limit) {
-            $parameters['limit'] = (int) $limit;
-        }
-
-        return $this->client->makeRequest(
-            '/store/products',
-            Client::METHOD_GET,
-            $parameters
-        );
-    }
-
-    /**
-     * Get products groups
-     *
-     * @param array $filter (default: array())
-     * @param int   $page   (default: null)
-     * @param int   $limit  (default: null)
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function storeProductsGroups(array $filter = array(), $page = null, $limit = null)
-    {
-        $parameters = array();
-
-        if (count($filter)) {
-            $parameters['filter'] = $filter;
-        }
-        if (null !== $page) {
-            $parameters['page'] = (int) $page;
-        }
-        if (null !== $limit) {
-            $parameters['limit'] = (int) $limit;
-        }
-
-        return $this->client->makeRequest(
-            '/store/product-groups',
-            Client::METHOD_GET,
-            $parameters
-        );
-    }
-
-    /**
-     * Get delivery settings
-     *
-     * @param string $code
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function deliverySettingsGet($code)
-    {
-        if (empty($code)) {
-            throw new \InvalidArgumentException('Parameter `code` must be set');
-        }
-
-        return $this->client->makeRequest(
-            "/delivery/generic/setting/$code",
-            Client::METHOD_GET
-        );
-    }
-
-    /**
-     * Edit delivery configuration
-     *
-     * @param array $configuration
-     *
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \InvalidArgumentException
-     *
-     * @return ApiResponse
-     */
-    public function deliverySettingsEdit(array $configuration)
-    {
-        if (!count($configuration) || empty($configuration['code'])) {
-            throw new \InvalidArgumentException(
-                'Parameter `configuration` must contains a data & configuration `code` must be set'
-            );
-        }
-
-        return $this->client->makeRequest(
-            sprintf('/delivery/generic/setting/%s/edit', $configuration['code']),
-            Client::METHOD_POST,
-            array('configuration' => json_encode($configuration))
-        );
-    }
-
-    /**
-     * Delivery tracking update
-     *
-     * @param string $code
-     * @param array  $statusUpdate
-     *
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \InvalidArgumentException
-     *
-     * @return ApiResponse
-     */
-    public function deliveryTracking($code, array $statusUpdate)
-    {
-        if (empty($code)) {
-            throw new \InvalidArgumentException('Parameter `code` must be set');
-        }
-
-        if (!count($statusUpdate)) {
-            throw new \InvalidArgumentException(
-                'Parameter `statusUpdate` must contains a data'
-            );
-        }
-
-        return $this->client->makeRequest(
-            sprintf('/delivery/generic/%s/tracking', $code),
-            Client::METHOD_POST,
-            array('statusUpdate' => json_encode($statusUpdate))
-        );
-    }
-
-    /**
-     * Returns available county list
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function countriesList()
-    {
-        return $this->client->makeRequest(
-            '/reference/countries',
-            Client::METHOD_GET
-        );
-    }
-
-    /**
-     * Returns deliveryServices list
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function deliveryServicesList()
-    {
-        return $this->client->makeRequest(
-            '/reference/delivery-services',
-            Client::METHOD_GET
-        );
-    }
-
-    /**
-     * Edit deliveryService
-     *
-     * @param array $data delivery service data
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function deliveryServicesEdit(array $data)
-    {
-        if (!array_key_exists('code', $data)) {
-            throw new \InvalidArgumentException(
-                'Data must contain "code" parameter.'
-            );
-        }
-
-        return $this->client->makeRequest(
-            sprintf('/reference/delivery-services/%s/edit', $data['code']),
-            Client::METHOD_POST,
-            array('deliveryService' => json_encode($data))
-        );
-    }
-
-    /**
-     * Returns deliveryTypes list
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function deliveryTypesList()
-    {
-        return $this->client->makeRequest(
-            '/reference/delivery-types',
-            Client::METHOD_GET
-        );
-    }
-
-    /**
-     * Edit deliveryType
-     *
-     * @param array $data delivery type data
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function deliveryTypesEdit(array $data)
-    {
-        if (!array_key_exists('code', $data)) {
-            throw new \InvalidArgumentException(
-                'Data must contain "code" parameter.'
-            );
-        }
-
-        return $this->client->makeRequest(
-            sprintf('/reference/delivery-types/%s/edit', $data['code']),
-            Client::METHOD_POST,
-            array('deliveryType' => json_encode($data))
-        );
-    }
-
-    /**
-     * Returns orderMethods list
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function orderMethodsList()
-    {
-        return $this->client->makeRequest(
-            '/reference/order-methods',
-            Client::METHOD_GET
-        );
-    }
-
-    /**
-     * Edit orderMethod
-     *
-     * @param array $data order method data
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function orderMethodsEdit(array $data)
-    {
-        if (!array_key_exists('code', $data)) {
-            throw new \InvalidArgumentException(
-                'Data must contain "code" parameter.'
-            );
-        }
-
-        return $this->client->makeRequest(
-            sprintf('/reference/order-methods/%s/edit', $data['code']),
-            Client::METHOD_POST,
-            array('orderMethod' => json_encode($data))
-        );
-    }
-
-    /**
-     * Returns orderTypes list
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function orderTypesList()
-    {
-        return $this->client->makeRequest(
-            '/reference/order-types',
-            Client::METHOD_GET
-        );
-    }
-
-    /**
-     * Edit orderType
-     *
-     * @param array $data order type data
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function orderTypesEdit(array $data)
-    {
-        if (!array_key_exists('code', $data)) {
-            throw new \InvalidArgumentException(
-                'Data must contain "code" parameter.'
-            );
-        }
-
-        return $this->client->makeRequest(
-            sprintf('/reference/order-types/%s/edit', $data['code']),
-            Client::METHOD_POST,
-            array('orderType' => json_encode($data))
-        );
-    }
-
-    /**
-     * Returns paymentStatuses list
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function paymentStatusesList()
-    {
-        return $this->client->makeRequest(
-            '/reference/payment-statuses',
-            Client::METHOD_GET
-        );
-    }
-
-    /**
-     * Edit paymentStatus
-     *
-     * @param array $data payment status data
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function paymentStatusesEdit(array $data)
-    {
-        if (!array_key_exists('code', $data)) {
-            throw new \InvalidArgumentException(
-                'Data must contain "code" parameter.'
-            );
-        }
-
-        return $this->client->makeRequest(
-            sprintf('/reference/payment-statuses/%s/edit', $data['code']),
-            Client::METHOD_POST,
-            array('paymentStatus' => json_encode($data))
-        );
-    }
-
-    /**
-     * Returns paymentTypes list
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function paymentTypesList()
-    {
-        return $this->client->makeRequest(
-            '/reference/payment-types',
-            Client::METHOD_GET
-        );
-    }
-
-    /**
-     * Edit paymentType
-     *
-     * @param array $data payment type data
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function paymentTypesEdit(array $data)
-    {
-        if (!array_key_exists('code', $data)) {
-            throw new \InvalidArgumentException(
-                'Data must contain "code" parameter.'
-            );
-        }
-
-        return $this->client->makeRequest(
-            sprintf('/reference/payment-types/%s/edit', $data['code']),
-            Client::METHOD_POST,
-            array('paymentType' => json_encode($data))
-        );
-    }
-
-    /**
-     * Returns productStatuses list
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function productStatusesList()
-    {
-        return $this->client->makeRequest(
-            '/reference/product-statuses',
-            Client::METHOD_GET
-        );
-    }
-
-    /**
-     * Edit productStatus
-     *
-     * @param array $data product status data
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function productStatusesEdit(array $data)
-    {
-        if (!array_key_exists('code', $data)) {
-            throw new \InvalidArgumentException(
-                'Data must contain "code" parameter.'
-            );
-        }
-
-        return $this->client->makeRequest(
-            sprintf('/reference/product-statuses/%s/edit', $data['code']),
-            Client::METHOD_POST,
-            array('productStatus' => json_encode($data))
-        );
-    }
-
-    /**
-     * Returns sites list
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function sitesList()
-    {
-        return $this->client->makeRequest(
-            '/reference/sites',
-            Client::METHOD_GET
-        );
-    }
-
-    /**
-     * Edit site
-     *
-     * @param array $data site data
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function sitesEdit(array $data)
-    {
-        if (!array_key_exists('code', $data)) {
-            throw new \InvalidArgumentException(
-                'Data must contain "code" parameter.'
-            );
-        }
-
-        return $this->client->makeRequest(
-            sprintf('/reference/sites/%s/edit', $data['code']),
-            Client::METHOD_POST,
-            array('site' => json_encode($data))
-        );
-    }
-
-    /**
-     * Returns statusGroups list
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function statusGroupsList()
-    {
-        return $this->client->makeRequest(
-            '/reference/status-groups',
-            Client::METHOD_GET
-        );
-    }
-
-    /**
-     * Returns statuses list
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function statusesList()
-    {
-        return $this->client->makeRequest(
-            '/reference/statuses',
-            Client::METHOD_GET
-        );
-    }
-
-    /**
-     * Edit order status
-     *
-     * @param array $data status data
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function statusesEdit(array $data)
-    {
-        if (!array_key_exists('code', $data)) {
-            throw new \InvalidArgumentException(
-                'Data must contain "code" parameter.'
-            );
-        }
-
-        return $this->client->makeRequest(
-            sprintf('/reference/statuses/%s/edit', $data['code']),
-            Client::METHOD_POST,
-            array('status' => json_encode($data))
-        );
-    }
-
-    /**
-     * Returns stores list
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function storesList()
-    {
-        return $this->client->makeRequest(
-            '/reference/stores',
-            Client::METHOD_GET
-        );
-    }
-
-    /**
-     * Edit store
-     *
-     * @param array $data site data
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function storesEdit(array $data)
-    {
-        if (!array_key_exists('code', $data)) {
-            throw new \InvalidArgumentException(
-                'Data must contain "code" parameter.'
-            );
-        }
-
-        if (!array_key_exists('name', $data)) {
-            throw new \InvalidArgumentException(
-                'Data must contain "name" parameter.'
-            );
-        }
-
-        return $this->client->makeRequest(
-            sprintf('/reference/stores/%s/edit', $data['code']),
-            Client::METHOD_POST,
-            array('store' => json_encode($data))
-        );
-    }
-
-    /**
-     * Get prices types
-     *
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function pricesTypes()
-    {
-        return $this->client->makeRequest(
-            '/reference/price-types',
-            Client::METHOD_GET
-        );
-    }
-
-    /**
-     * Edit price type
-     *
-     * @param array $data
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function pricesEdit(array $data)
-    {
-        if (!array_key_exists('code', $data)) {
-            throw new \InvalidArgumentException(
-                'Data must contain "code" parameter.'
-            );
-        }
-
-        if (!array_key_exists('name', $data)) {
-            throw new \InvalidArgumentException(
-                'Data must contain "name" parameter.'
-            );
-        }
-
-        return $this->client->makeRequest(
-            sprintf('/reference/price-types/%s/edit', $data['code']),
-            Client::METHOD_POST,
-            array('priceType' => json_encode($data))
-        );
-    }
-
-    /**
-     * Get telephony settings
-     *
-     * @param string $code
-     *
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \InvalidArgumentException
-     *
-     * @return ApiResponse
-     */
-    public function telephonySettingsGet($code)
-    {
-        if (empty($code)) {
-            throw new \InvalidArgumentException('Parameter `code` must be set');
-        }
-
-        return $this->client->makeRequest(
-            "/telephony/setting/$code",
-            Client::METHOD_GET
-        );
-    }
-
-    /**
-     * Edit telephony settings
-     *
-     * @param string  $code        symbolic code
-     * @param string  $clientId    client id
-     * @param boolean $active      telephony activity
-     * @param mixed   $name        service name
-     * @param mixed   $makeCallUrl service init url
-     * @param mixed   $image       service logo url(svg file)
-     *
-     * @param array   $additionalCodes
-     * @param array   $externalPhones
-     * @param bool    $allowEdit
-     * @param bool    $inputEventSupported
-     * @param bool    $outputEventSupported
-     * @param bool    $hangupEventSupported
-     * @param bool    $changeUserStatusUrl
-     *
-     * @return ApiResponse
-     */
-    public function telephonySettingsEdit(
-        $code,
-        $clientId,
-        $active = false,
-        $name = false,
-        $makeCallUrl = false,
-        $image = false,
-        $additionalCodes = array(),
-        $externalPhones = array(),
-        $allowEdit = false,
-        $inputEventSupported = false,
-        $outputEventSupported = false,
-        $hangupEventSupported = false,
-        $changeUserStatusUrl = false
-    ) {
-        if (!isset($code)) {
-            throw new \InvalidArgumentException('Code must be set');
-        }
-
-        $parameters['code'] = $code;
-
-        if (!isset($clientId)) {
-            throw new \InvalidArgumentException('client id must be set');
-        }
-
-        $parameters['clientId'] = $clientId;
-
-        if (!isset($active)) {
-            $parameters['active'] = false;
-        } else {
-            $parameters['active'] = $active;
-        }
-
-        if (!isset($name)) {
-            throw new \InvalidArgumentException('name must be set');
-        }
-
-        if (isset($name)) {
-            $parameters['name'] = $name;
-        }
-
-        if (isset($makeCallUrl)) {
-            $parameters['makeCallUrl'] = $makeCallUrl;
-        }
-
-        if (isset($image)) {
-            $parameters['image'] = $image;
-        }
-
-        if (isset($additionalCodes)) {
-            $parameters['additionalCodes'] = $additionalCodes;
-        }
-
-        if (isset($externalPhones)) {
-            $parameters['externalPhones'] = $externalPhones;
-        }
-
-        if (isset($allowEdit)) {
-            $parameters['allowEdit'] = $allowEdit;
-        }
-
-        if (isset($inputEventSupported)) {
-            $parameters['inputEventSupported'] = $inputEventSupported;
-        }
-
-        if (isset($outputEventSupported)) {
-            $parameters['outputEventSupported'] = $outputEventSupported;
-        }
-
-        if (isset($hangupEventSupported)) {
-            $parameters['hangupEventSupported'] = $hangupEventSupported;
-        }
-
-        if (isset($changeUserStatusUrl)) {
-            $parameters['changeUserStatusUrl'] = $changeUserStatusUrl;
-        }
-
-        return $this->client->makeRequest(
-            "/telephony/setting/$code/edit",
-            Client::METHOD_POST,
-            array('configuration' => json_encode($parameters))
-        );
-    }
-
-    /**
-     * Call event
-     *
-     * @param string $phone phone number
-     * @param string $type  call type
-     * @param array  $codes
-     * @param string $hangupStatus
-     * @param string $externalPhone
-     * @param array  $webAnalyticsData
-     *
-     * @return ApiResponse
-     * @internal param string $code additional phone code
-     * @internal param string $status call status
-     *
-     */
-    public function telephonyCallEvent(
-        $phone,
-        $type,
-        $codes,
-        $hangupStatus,
-        $externalPhone = null,
-        $webAnalyticsData = array()
-    ) {
-        if (!isset($phone)) {
-            throw new \InvalidArgumentException('Phone number must be set');
-        }
-
-        if (!isset($type)) {
-            throw new \InvalidArgumentException('Type must be set (in|out|hangup)');
-        }
-
-        if (empty($codes)) {
-            throw new \InvalidArgumentException('Codes array must be set');
-        }
-
-        $parameters['phone'] = $phone;
-        $parameters['type'] = $type;
-        $parameters['codes'] = $codes;
-        $parameters['hangupStatus'] = $hangupStatus;
-        $parameters['callExternalId'] = $externalPhone;
-        $parameters['webAnalyticsData'] = $webAnalyticsData;
-
-
-        return $this->client->makeRequest(
-            '/telephony/call/event',
-            Client::METHOD_POST,
-            array('event' => json_encode($parameters))
-        );
-    }
-
-    /**
-     * Upload calls
-     *
-     * @param array $calls calls data
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function telephonyCallsUpload(array $calls)
-    {
-        if (!count($calls)) {
-            throw new \InvalidArgumentException(
-                'Parameter `calls` must contains array of the calls'
-            );
-        }
-
-        return $this->client->makeRequest(
-            '/telephony/calls/upload',
-            Client::METHOD_POST,
-            array('calls' => json_encode($calls))
-        );
-    }
-
-    /**
-     * Get call manager
-     *
-     * @param string $phone   phone number
-     * @param bool   $details detailed information
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function telephonyCallManager($phone, $details)
-    {
-        if (!isset($phone)) {
-            throw new \InvalidArgumentException('Phone number must be set');
-        }
-
-        $parameters['phone'] = $phone;
-        $parameters['details'] = isset($details) ? $details : 0;
-
-        return $this->client->makeRequest(
-            '/telephony/manager',
-            Client::METHOD_GET,
-            $parameters
-        );
-    }
-
-    /**
-     * Edit marketplace configuration
-     *
-     * @param array $configuration
-     *
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \InvalidArgumentException
-     *
-     * @return ApiResponse
-     */
-    public function marketplaceSettingsEdit(array $configuration)
-    {
-        if (!count($configuration) || empty($configuration['code'])) {
-            throw new \InvalidArgumentException(
-                'Parameter `configuration` must contains a data & configuration `code` must be set'
-            );
-        }
-
-        return $this->client->makeRequest(
-            sprintf('/marketplace/external/setting/%s/edit', $configuration['code']),
-            Client::METHOD_POST,
-            array('configuration' => json_encode($configuration))
-        );
-    }
-
-    /**
-     * Update CRM basic statistic
-     *
-     * @throws \InvalidArgumentException
-     * @throws \RetailCrm\Exception\CurlException
-     * @throws \RetailCrm\Exception\InvalidJsonException
-     *
-     * @return ApiResponse
-     */
-    public function statisticUpdate()
-    {
-        return $this->client->makeRequest(
-            '/statistic/update',
-            Client::METHOD_GET
-        );
-    }
+    public $request;
+    public $version;
 
     /**
-     * Get custom fields list
+     * Init version based client
      *
-     * @param array $filter
-     * @param null  $limit
-     * @param null  $page
+     * @param string $url     api url
+     * @param string $apiKey  api key
+     * @param string $version api version
+     * @param string $site    site code
      *
-     * @return ApiResponse
      */
-    public function customFieldsList(array $filter = array(), $limit = null, $page = null)
+    public function __construct($url, $apiKey, $version = 'v5', $site = null)
     {
-        $parameters = array();
+        $this->version = $version;
 
-        if (count($filter)) {
-            $parameters['filter'] = $filter;
+        switch ($version) {
+            case 'v5':
+                $this->request = new ApiVersion5($url, $apiKey, $version, $site);
+                break;
+            case 'v4':
+                $this->request = new ApiVersion4($url, $apiKey, $version, $site);
+                break;
+            case 'v3':
+                $this->request = new ApiVersion3($url, $apiKey, $version, $site);
+                break;
         }
-        if (null !== $page) {
-            $parameters['page'] = (int) $page;
-        }
-        if (null !== $limit) {
-            $parameters['limit'] = (int) $limit;
-        }
-
-        return $this->client->makeRequest(
-            '/custom-fields',
-            Client::METHOD_GET,
-            $parameters
-        );
-    }
-
-    /**
-     * Create custom field
-     *
-     * @param $entity
-     * @param $customField
-     *
-     * @return ApiResponse
-     */
-    public function customFieldsCreate($entity, $customField)
-    {
-        if (!count($customField) ||
-            empty($customField['code']) ||
-            empty($customField['name']) ||
-            empty($customField['type'])
-        ) {
-            throw new \InvalidArgumentException(
-                'Parameter `customField` must contain a data & fields `code`, `name` & `type` must be set'
-            );
-        }
-
-        if (empty($entity) || $entity != 'customer' || $entity != 'order') {
-            throw new \InvalidArgumentException(
-                'Parameter `entity` must contain a data & value must be `order` or `customer`'
-            );
-        }
-
-        return $this->client->makeRequest(
-            "/custom-fields/$entity/create",
-            Client::METHOD_POST,
-            array('customField' => json_encode($customField))
-        );
-    }
-
-    /**
-     * Edit custom field
-     *
-     * @param $entity
-     * @param $customField
-     *
-     * @return ApiResponse
-     */
-    public function customFieldsEdit($entity, $customField)
-    {
-        if (!count($customField) || empty($customField['code'])) {
-            throw new \InvalidArgumentException(
-                'Parameter `customField` must contain a data & fields `code` must be set'
-            );
-        }
-
-        if (empty($entity) || $entity != 'customer' || $entity != 'order') {
-            throw new \InvalidArgumentException(
-                'Parameter `entity` must contain a data & value must be `order` or `customer`'
-            );
-        }
-
-        return $this->client->makeRequest(
-            "/custom-fields/$entity/edit/{$customField['code']}",
-            Client::METHOD_POST,
-            array('customField' => json_encode($customField))
-        );
-    }
-
-    /**
-     * Get custom field
-     *
-     * @param $entity
-     * @param $code
-     *
-     * @return ApiResponse
-     */
-    public function customFieldsGet($entity, $code)
-    {
-        if (empty($code)) {
-            throw new \InvalidArgumentException(
-                'Parameter `code` must be not empty'
-            );
-        }
-
-        if (empty($entity) || $entity != 'customer' || $entity != 'order') {
-            throw new \InvalidArgumentException(
-                'Parameter `entity` must contain a data & value must be `order` or `customer`'
-            );
-        }
-
-        return $this->client->makeRequest(
-            "/custom-fields/$entity/$code",
-            Client::METHOD_GET
-        );
-    }
-
-    /**
-     * Get custom dictionaries list
-     *
-     * @param array $filter
-     * @param null  $limit
-     * @param null  $page
-     *
-     * @return ApiResponse
-     */
-    public function customDictionariesList(array $filter = array(), $limit = null, $page = null)
-    {
-        $parameters = array();
-
-        if (count($filter)) {
-            $parameters['filter'] = $filter;
-        }
-        if (null !== $page) {
-            $parameters['page'] = (int) $page;
-        }
-        if (null !== $limit) {
-            $parameters['limit'] = (int) $limit;
-        }
-
-        return $this->client->makeRequest(
-            '/custom-fields/dictionaries',
-            Client::METHOD_GET,
-            $parameters
-        );
-    }
-
-    /**
-     * Create custom dictionary
-     *
-     * @param $customDictionary
-     *
-     * @return ApiResponse
-     */
-    public function customDictionariesCreate($customDictionary)
-    {
-        if (!count($customDictionary) ||
-            empty($customDictionary['code']) ||
-            empty($customDictionary['elements'])
-        ) {
-            throw new \InvalidArgumentException(
-                'Parameter `dictionary` must contain a data & fields `code` & `elemets` must be set'
-            );
-        }
-
-        return $this->client->makeRequest(
-            "/custom-fields/dictionaries/{$customDictionary['code']}/create",
-            Client::METHOD_POST,
-            array('customDictionary' => json_encode($customDictionary))
-        );
-    }
-
-    /**
-     * Edit custom dictionary
-     *
-     * @param $customDictionary
-     *
-     * @return ApiResponse
-     */
-    public function customDictionariesEdit($customDictionary)
-    {
-        if (!count($customDictionary) ||
-            empty($customDictionary['code']) ||
-            empty($customDictionary['elements'])
-        ) {
-            throw new \InvalidArgumentException(
-                'Parameter `dictionary` must contain a data & fields `code` & `elemets` must be set'
-            );
-        }
-
-        return $this->client->makeRequest(
-            "/custom-fields/dictionaries/{$customDictionary['code']}/edit",
-            Client::METHOD_POST,
-            array('customDictionary' => json_encode($customDictionary))
-        );
-    }
-
-    /**
-     * Get custom dictionary
-     *
-     * @param $code
-     *
-     * @return ApiResponse
-     */
-    public function customDictionariesGet($code)
-    {
-        if (empty($code)) {
-            throw new \InvalidArgumentException(
-                'Parameter `code` must be not empty'
-            );
-        }
-
-        return $this->client->makeRequest(
-            "/custom-fields/dictionaries/$code",
-            Client::METHOD_GET
-        );
-    }
-
-    /**
-     * Get segments list
-     *
-     * @param array $filter
-     * @param null  $limit
-     * @param null  $page
-     *
-     * @return ApiResponse
-     */
-    public function segmentsList(array $filter = array(), $limit = null, $page = null)
-    {
-        $parameters = array();
-
-        if (count($filter)) {
-            $parameters['filter'] = $filter;
-        }
-        if (null !== $page) {
-            $parameters['page'] = (int) $page;
-        }
-        if (null !== $limit) {
-            $parameters['limit'] = (int) $limit;
-        }
-
-        return $this->client->makeRequest(
-            '/segments',
-            Client::METHOD_GET,
-            $parameters
-        );
-    }
-
-    /**
-     * Get tasks list
-     *
-     * @param array $filter
-     * @param null  $limit
-     * @param null  $page
-     *
-     * @return ApiResponse
-     */
-    public function tasksList(array $filter = array(), $limit = null, $page = null)
-    {
-        $parameters = array();
-
-        if (count($filter)) {
-            $parameters['filter'] = $filter;
-        }
-        if (null !== $page) {
-            $parameters['page'] = (int) $page;
-        }
-        if (null !== $limit) {
-            $parameters['limit'] = (int) $limit;
-        }
-
-        return $this->client->makeRequest(
-            '/tasks',
-            Client::METHOD_GET,
-            $parameters
-        );
-    }
-
-    /**
-     * Create task
-     *
-     * @param array $task
-     * @param null  $site
-     *
-     * @return ApiResponse
-     *
-     */
-    public function tasksCreate($task, $site = null)
-    {
-        if (!count($task)) {
-            throw new \InvalidArgumentException(
-                'Parameter `task` must contain a data'
-            );
-        }
-
-        return $this->client->makeRequest(
-            "/tasks/create",
-            Client::METHOD_POST,
-            $this->fillSite(
-                $site,
-                array('task' => json_encode($task))
-            )
-        );
-    }
-
-    /**
-     * Edit task
-     *
-     * @param array $task
-     * @param null  $site
-     *
-     * @return ApiResponse
-     *
-     */
-    public function tasksEdit($task, $site = null)
-    {
-        if (!count($task)) {
-            throw new \InvalidArgumentException(
-                'Parameter `task` must contain a data'
-            );
-        }
-
-        return $this->client->makeRequest(
-            "/tasks/{$task['id']}/edit",
-            Client::METHOD_POST,
-            $this->fillSite(
-                $site,
-                array('task' => json_encode($task))
-            )
-        );
-    }
-
-    /**
-     * Get custom dictionary
-     *
-     * @param $id
-     *
-     * @return ApiResponse
-     */
-    public function tasksGet($id)
-    {
-        if (empty($id)) {
-            throw new \InvalidArgumentException(
-                'Parameter `id` must be not empty'
-            );
-        }
-
-        return $this->client->makeRequest(
-            "/tasks/$id",
-            Client::METHOD_GET
-        );
     }
 
     /**
-     * Return current site
+     * Get API version
      *
      * @return string
      */
-    public function getSite()
+    public function getVersion()
     {
-        return $this->siteCode;
-    }
-
-    /**
-     * Set site
-     *
-     * @param string $site site code
-     *
-     * @return void
-     */
-    public function setSite($site)
-    {
-        $this->siteCode = $site;
-    }
-
-    /**
-     * Check ID parameter
-     *
-     * @param string $by identify by
-     *
-     * @throws \InvalidArgumentException
-     *
-     * @return bool
-     */
-    protected function checkIdParameter($by)
-    {
-        $allowedForBy = array(
-            'externalId',
-            'id'
-        );
-
-        if (!in_array($by, $allowedForBy, false)) {
-            throw new \InvalidArgumentException(
-                sprintf(
-                    'Value "%s" for "by" param is not valid. Allowed values are %s.',
-                    $by,
-                    implode(', ', $allowedForBy)
-                )
-            );
-        }
-
-        return true;
-    }
-
-    /**
-     * Fill params by site value
-     *
-     * @param string $site   site code
-     * @param array  $params input parameters
-     *
-     * @return array
-     */
-    protected function fillSite($site, array $params)
-    {
-        if ($site) {
-            $params['site'] = $site;
-        } elseif ($this->siteCode) {
-            $params['site'] = $this->siteCode;
-        }
-
-        return $params;
+        return $this->version;
     }
 }
diff --git a/lib/RetailCrm/Client/AbstractLoader.php b/lib/RetailCrm/Client/AbstractLoader.php
new file mode 100644
index 0000000..061d07f
--- /dev/null
+++ b/lib/RetailCrm/Client/AbstractLoader.php
@@ -0,0 +1,132 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Client;
+
+use RetailCrm\Http\Client;
+
+/**
+ * PHP version 5.4
+ *
+ * API client class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+abstract class AbstractLoader
+{
+    protected $siteCode;
+    protected $client;
+
+    /**
+     * Init version based client
+     *
+     * @param string $url     api url
+     * @param string $apiKey  api key
+     * @param string $version api version
+     * @param string $site    site code
+     */
+    public function __construct($url, $apiKey, $version, $site = null)
+    {
+        if ('/' !== $url[strlen($url) - 1]) {
+            $url .= '/';
+        }
+
+        if (empty($version) || !in_array($version, ['v3', 'v4', 'v5'])) {
+            throw new \InvalidArgumentException(
+                'Version parameter must be not empty and must be equal one of v3|v4|v5'
+            );
+        }
+
+        $url = $url . 'api/' . $version;
+
+        $this->client = new Client($url, ['apiKey' => $apiKey]);
+        $this->siteCode = $site;
+    }
+
+    /**
+     * Set site
+     *
+     * @param string $site site code
+     *
+     * @return void
+     */
+    public function setSite($site)
+    {
+        $this->siteCode = $site;
+    }
+
+    /**
+     * Check ID parameter
+     *
+     * @param string $by identify by
+     *
+     * @throws \InvalidArgumentException
+     *
+     * @return bool
+     */
+    protected function checkIdParameter($by)
+    {
+        $allowedForBy = [
+            'externalId',
+            'id'
+        ];
+
+        if (!in_array($by, $allowedForBy, false)) {
+            throw new \InvalidArgumentException(
+                sprintf(
+                    'Value "%s" for "by" param is not valid. Allowed values are %s.',
+                    $by,
+                    implode(', ', $allowedForBy)
+                )
+            );
+        }
+
+        return true;
+    }
+
+    /**
+     * Fill params by site value
+     *
+     * @param string $site   site code
+     * @param array  $params input parameters
+     *
+     * @return array
+     */
+    protected function fillSite($site, array $params)
+    {
+        if ($site) {
+            $params['site'] = $site;
+        } elseif ($this->siteCode) {
+            $params['site'] = $this->siteCode;
+        }
+
+        return $params;
+    }
+
+    /**
+     * Return current site
+     *
+     * @return string
+     */
+    public function getSite()
+    {
+        return $this->siteCode;
+    }
+
+
+}
diff --git a/lib/RetailCrm/Client/ApiVersion3.php b/lib/RetailCrm/Client/ApiVersion3.php
new file mode 100644
index 0000000..30f6aa6
--- /dev/null
+++ b/lib/RetailCrm/Client/ApiVersion3.php
@@ -0,0 +1,53 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Client;
+
+use RetailCrm\Methods\V3;
+
+/**
+ * PHP version 5.4
+ *
+ * API client class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+class ApiVersion3 extends AbstractLoader
+{
+    /**
+     * Init version based client
+     *
+     * @param string $url     api url
+     * @param string $apiKey  api key
+     * @param string $version api version
+     * @param string $site    site code
+     *
+     */
+    public function __construct($url, $apiKey, $version, $site)
+    {
+        parent::__construct($url, $apiKey, $version, $site);
+    }
+
+    use V3\Customers;
+    use V3\Orders;
+    use V3\Packs;
+    use V3\References;
+    use V3\Statistic;
+    use V3\Stores;
+    use V3\Telephony;
+}
diff --git a/lib/RetailCrm/Client/ApiVersion4.php b/lib/RetailCrm/Client/ApiVersion4.php
new file mode 100644
index 0000000..27f686a
--- /dev/null
+++ b/lib/RetailCrm/Client/ApiVersion4.php
@@ -0,0 +1,56 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Client;
+
+use RetailCrm\Methods\V4;
+
+/**
+ * PHP version 5.4
+ *
+ * API client class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+class ApiVersion4 extends AbstractLoader
+{
+    /**
+     * Init version based client
+     *
+     * @param string $url     api url
+     * @param string $apiKey  api key
+     * @param string $version api version
+     * @param string $site    site code
+     *
+     */
+    public function __construct($url, $apiKey, $version, $site)
+    {
+        parent::__construct($url, $apiKey, $version, $site);
+    }
+
+    use V4\Customers;
+    use V4\Delivery;
+    use V4\Marketplace;
+    use V4\Orders;
+    use V4\Packs;
+    use V4\References;
+    use V4\Statistic;
+    use V4\Stores;
+    use V4\Telephony;
+    use V4\Users;
+}
diff --git a/lib/RetailCrm/Client/ApiVersion5.php b/lib/RetailCrm/Client/ApiVersion5.php
new file mode 100644
index 0000000..cbb9c79
--- /dev/null
+++ b/lib/RetailCrm/Client/ApiVersion5.php
@@ -0,0 +1,59 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Client;
+
+use RetailCrm\Methods\V5;
+
+/**
+ * PHP version 5.4
+ *
+ * API client class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+class ApiVersion5 extends AbstractLoader
+{
+    /**
+     * Init version based client
+     *
+     * @param string $url     api url
+     * @param string $apiKey  api key
+     * @param string $version api version
+     * @param string $site    site code
+     *
+     */
+    public function __construct($url, $apiKey, $version, $site)
+    {
+        parent::__construct($url, $apiKey, $version, $site);
+    }
+
+    use V5\Customers;
+    use V5\CustomFields;
+    use V5\Delivery;
+    use V5\Marketplace;
+    use V5\Orders;
+    use V5\Packs;
+    use V5\References;
+    use V5\Segments;
+    use V5\Statistic;
+    use V5\Stores;
+    use V5\Tasks;
+    use V5\Telephony;
+    use V5\Users;
+}
diff --git a/lib/RetailCrm/Exception/CurlException.php b/lib/RetailCrm/Exception/CurlException.php
index 2524b4f..922a810 100644
--- a/lib/RetailCrm/Exception/CurlException.php
+++ b/lib/RetailCrm/Exception/CurlException.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * PHP version 5.3
+ * PHP version 5.4
  *
  * Class CurlException
  *
@@ -15,7 +15,7 @@
 namespace RetailCrm\Exception;
 
 /**
- * PHP version 5.3
+ * PHP version 5.4
  *
  * Class CurlException
  *
diff --git a/lib/RetailCrm/Exception/InvalidJsonException.php b/lib/RetailCrm/Exception/InvalidJsonException.php
index fe1b9c7..d6288b3 100644
--- a/lib/RetailCrm/Exception/InvalidJsonException.php
+++ b/lib/RetailCrm/Exception/InvalidJsonException.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * PHP version 5.3
+ * PHP version 5.4
  *
  * Class InvalidJsonException
  *
@@ -15,7 +15,7 @@
 namespace RetailCrm\Exception;
 
 /**
- * PHP version 5.3
+ * PHP version 5.4
  *
  * Class InvalidJsonException
  *
diff --git a/lib/RetailCrm/Http/Client.php b/lib/RetailCrm/Http/Client.php
index 3fa4ca4..13cf46e 100644
--- a/lib/RetailCrm/Http/Client.php
+++ b/lib/RetailCrm/Http/Client.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * PHP version 5.3
+ * PHP version 5.4
  *
  * HTTP client
  *
@@ -19,7 +19,7 @@ use RetailCrm\Exception\InvalidJsonException;
 use RetailCrm\Response\ApiResponse;
 
 /**
- * PHP version 5.3
+ * PHP version 5.4
  *
  * HTTP client
  *
@@ -45,7 +45,7 @@ class Client
      *
      * @throws \InvalidArgumentException
      */
-    public function __construct($url, array $defaultParameters = array())
+    public function __construct($url, array $defaultParameters = [])
     {
         if (false === stripos($url, 'https://')) {
             throw new \InvalidArgumentException(
@@ -75,9 +75,9 @@ class Client
     public function makeRequest(
         $path,
         $method,
-        array $parameters = array()
+        array $parameters = []
     ) {
-        $allowedMethods = array(self::METHOD_GET, self::METHOD_POST);
+        $allowedMethods = [self::METHOD_GET, self::METHOD_POST];
 
         if (!in_array($method, $allowedMethods, false)) {
             throw new \InvalidArgumentException(
diff --git a/lib/RetailCrm/Methods/V3/Customers.php b/lib/RetailCrm/Methods/V3/Customers.php
new file mode 100644
index 0000000..796f749
--- /dev/null
+++ b/lib/RetailCrm/Methods/V3/Customers.php
@@ -0,0 +1,206 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V3;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Customers
+{
+    /**
+     * Returns filtered customers list
+     *
+     * @param array $filter (default: array())
+     * @param int   $page   (default: null)
+     * @param int   $limit  (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function customersList(array $filter = [], $page = null, $limit = null)
+    {
+        $parameters = [];
+
+        if (count($filter)) {
+            $parameters['filter'] = $filter;
+        }
+        if (null !== $page) {
+            $parameters['page'] = (int) $page;
+        }
+        if (null !== $limit) {
+            $parameters['limit'] = (int) $limit;
+        }
+
+        return $this->client->makeRequest(
+            '/customers',
+            "GET",
+            $parameters
+        );
+    }
+
+    /**
+     * Create a customer
+     *
+     * @param array  $customer customer data
+     * @param string $site     (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function customersCreate(array $customer, $site = null)
+    {
+        if (! count($customer)) {
+            throw new \InvalidArgumentException(
+                'Parameter `customer` must contains a data'
+            );
+        }
+
+        return $this->client->makeRequest(
+            '/customers/create',
+            "POST",
+            $this->fillSite($site, ['customer' => json_encode($customer)])
+        );
+    }
+
+    /**
+     * Save customer IDs' (id and externalId) association in the CRM
+     *
+     * @param array $ids ids mapping
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function customersFixExternalIds(array $ids)
+    {
+        if (! count($ids)) {
+            throw new \InvalidArgumentException(
+                'Method parameter must contains at least one IDs pair'
+            );
+        }
+
+        return $this->client->makeRequest(
+            '/customers/fix-external-ids',
+            "POST",
+            ['customers' => json_encode($ids)]
+        );
+    }
+
+    /**
+     * Upload array of the customers
+     *
+     * @param array  $customers array of customers
+     * @param string $site      (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function customersUpload(array $customers, $site = null)
+    {
+        if (! count($customers)) {
+            throw new \InvalidArgumentException(
+                'Parameter `customers` must contains array of the customers'
+            );
+        }
+
+        return $this->client->makeRequest(
+            '/customers/upload',
+            "POST",
+            $this->fillSite($site, ['customers' => json_encode($customers)])
+        );
+    }
+
+    /**
+     * Get customer by id or externalId
+     *
+     * @param string $id   customer identificator
+     * @param string $by   (default: 'externalId')
+     * @param string $site (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function customersGet($id, $by = 'externalId', $site = null)
+    {
+        $this->checkIdParameter($by);
+
+        return $this->client->makeRequest(
+            "/customers/$id",
+            "GET",
+            $this->fillSite($site, ['by' => $by])
+        );
+    }
+
+    /**
+     * Edit a customer
+     *
+     * @param array  $customer customer data
+     * @param string $by       (default: 'externalId')
+     * @param string $site     (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function customersEdit(array $customer, $by = 'externalId', $site = null)
+    {
+        if (!count($customer)) {
+            throw new \InvalidArgumentException(
+                'Parameter `customer` must contains a data'
+            );
+        }
+
+        $this->checkIdParameter($by);
+
+        if (!array_key_exists($by, $customer)) {
+            throw new \InvalidArgumentException(
+                sprintf('Customer array must contain the "%s" parameter.', $by)
+            );
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/customers/%s/edit', $customer[$by]),
+            "POST",
+            $this->fillSite(
+                $site,
+                ['customer' => json_encode($customer), 'by' => $by]
+            )
+        );
+    }
+}
diff --git a/lib/RetailCrm/Methods/V3/Orders.php b/lib/RetailCrm/Methods/V3/Orders.php
new file mode 100644
index 0000000..56bd6bc
--- /dev/null
+++ b/lib/RetailCrm/Methods/V3/Orders.php
@@ -0,0 +1,267 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V3;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Orders
+{
+
+    /**
+     * Returns filtered orders list
+     *
+     * @param array $filter (default: array())
+     * @param int   $page   (default: null)
+     * @param int   $limit  (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersList(array $filter = [], $page = null, $limit = null)
+    {
+        $parameters = [];
+
+        if (count($filter)) {
+            $parameters['filter'] = $filter;
+        }
+        if (null !== $page) {
+            $parameters['page'] = (int) $page;
+        }
+        if (null !== $limit) {
+            $parameters['limit'] = (int) $limit;
+        }
+
+        return $this->client->makeRequest(
+            '/orders',
+            "GET",
+            $parameters
+        );
+    }
+
+    /**
+     * Create an order
+     *
+     * @param array  $order order data
+     * @param string $site  (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersCreate(array $order, $site = null)
+    {
+        if (!count($order)) {
+            throw new \InvalidArgumentException(
+                'Parameter `order` must contains a data'
+            );
+        }
+
+        return $this->client->makeRequest(
+            '/orders/create',
+            "POST",
+            $this->fillSite($site, ['order' => json_encode($order)])
+        );
+    }
+
+    /**
+     * Save order IDs' (id and externalId) association into CRM
+     *
+     * @param array $ids order identificators
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersFixExternalIds(array $ids)
+    {
+        if (! count($ids)) {
+            throw new \InvalidArgumentException(
+                'Method parameter must contains at least one IDs pair'
+            );
+        }
+
+        return $this->client->makeRequest(
+            '/orders/fix-external-ids',
+            "POST",
+            ['orders' => json_encode($ids)
+            ]
+        );
+    }
+
+    /**
+     * Returns statuses of the orders
+     *
+     * @param array $ids         (default: array())
+     * @param array $externalIds (default: array())
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersStatuses(array $ids = [], array $externalIds = [])
+    {
+        $parameters = [];
+
+        if (count($ids)) {
+            $parameters['ids'] = $ids;
+        }
+        if (count($externalIds)) {
+            $parameters['externalIds'] = $externalIds;
+        }
+
+        return $this->client->makeRequest(
+            '/orders/statuses',
+            "GET",
+            $parameters
+        );
+    }
+
+    /**
+     * Upload array of the orders
+     *
+     * @param array  $orders array of orders
+     * @param string $site   (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersUpload(array $orders, $site = null)
+    {
+        if (!count($orders)) {
+            throw new \InvalidArgumentException(
+                'Parameter `orders` must contains array of the orders'
+            );
+        }
+
+        return $this->client->makeRequest(
+            '/orders/upload',
+            "POST",
+            $this->fillSite($site, ['orders' => json_encode($orders)])
+        );
+    }
+
+    /**
+     * Get order by id or externalId
+     *
+     * @param string $id   order identificator
+     * @param string $by   (default: 'externalId')
+     * @param string $site (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersGet($id, $by = 'externalId', $site = null)
+    {
+        $this->checkIdParameter($by);
+
+        return $this->client->makeRequest(
+            "/orders/$id",
+            "GET",
+            $this->fillSite($site, ['by' => $by])
+        );
+    }
+
+    /**
+     * Edit an order
+     *
+     * @param array  $order order data
+     * @param string $by    (default: 'externalId')
+     * @param string $site  (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersEdit(array $order, $by = 'externalId', $site = null)
+    {
+        if (!count($order)) {
+            throw new \InvalidArgumentException(
+                'Parameter `order` must contains a data'
+            );
+        }
+
+        $this->checkIdParameter($by);
+
+        if (!array_key_exists($by, $order)) {
+            throw new \InvalidArgumentException(
+                sprintf('Order array must contain the "%s" parameter.', $by)
+            );
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/orders/%s/edit', $order[$by]),
+            "POST",
+            $this->fillSite(
+                $site,
+                ['order' => json_encode($order), 'by' => $by]
+            )
+        );
+    }
+
+    /**
+     * Get orders history
+     * @param array $filter
+     * @param null $page
+     * @param null $limit
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersHistory(array $filter = [], $page = null, $limit = null)
+    {
+        $parameters = [];
+
+        if (count($filter)) {
+            $parameters['filter'] = $filter;
+        }
+        if (null !== $page) {
+            $parameters['page'] = (int) $page;
+        }
+        if (null !== $limit) {
+            $parameters['limit'] = (int) $limit;
+        }
+
+        return $this->client->makeRequest(
+            '/orders/history',
+            "GET",
+            $parameters
+        );
+    }
+}
diff --git a/lib/RetailCrm/Methods/V3/Packs.php b/lib/RetailCrm/Methods/V3/Packs.php
new file mode 100644
index 0000000..c493ce3
--- /dev/null
+++ b/lib/RetailCrm/Methods/V3/Packs.php
@@ -0,0 +1,197 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V3;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Packs
+{
+    /**
+     * Get orders assembly list
+     *
+     * @param array $filter (default: array())
+     * @param int   $page   (default: null)
+     * @param int   $limit  (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersPacksList(array $filter = [], $page = null, $limit = null)
+    {
+        $parameters = [];
+
+        if (count($filter)) {
+            $parameters['filter'] = $filter;
+        }
+        if (null !== $page) {
+            $parameters['page'] = (int) $page;
+        }
+        if (null !== $limit) {
+            $parameters['limit'] = (int) $limit;
+        }
+
+        return $this->client->makeRequest(
+            '/orders/packs',
+            "GET",
+            $parameters
+        );
+    }
+
+    /**
+     * Create orders assembly
+     *
+     * @param array  $pack pack data
+     * @param string $site (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersPacksCreate(array $pack, $site = null)
+    {
+        if (!count($pack)) {
+            throw new \InvalidArgumentException(
+                'Parameter `pack` must contains a data'
+            );
+        }
+
+        return $this->client->makeRequest(
+            '/orders/packs/create',
+            "POST",
+            $this->fillSite($site, ['pack' => json_encode($pack)])
+        );
+    }
+
+    /**
+     * Get orders assembly history
+     *
+     * @param array $filter (default: array())
+     * @param int   $page   (default: null)
+     * @param int   $limit  (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersPacksHistory(array $filter = [], $page = null, $limit = null)
+    {
+        $parameters = [];
+
+        if (count($filter)) {
+            $parameters['filter'] = $filter;
+        }
+        if (null !== $page) {
+            $parameters['page'] = (int) $page;
+        }
+        if (null !== $limit) {
+            $parameters['limit'] = (int) $limit;
+        }
+
+        return $this->client->makeRequest(
+            '/orders/packs/history',
+            "GET",
+            $parameters
+        );
+    }
+
+    /**
+     * Get orders assembly by id
+     *
+     * @param string $id pack identificator
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersPacksGet($id)
+    {
+        if (empty($id)) {
+            throw new \InvalidArgumentException('Parameter `id` must be set');
+        }
+
+        return $this->client->makeRequest(
+            "/orders/packs/$id",
+            "GET"
+        );
+    }
+
+    /**
+     * Delete orders assembly by id
+     *
+     * @param string $id pack identificator
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersPacksDelete($id)
+    {
+        if (empty($id)) {
+            throw new \InvalidArgumentException('Parameter `id` must be set');
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/orders/packs/%s/delete', $id),
+            "POST"
+        );
+    }
+
+    /**
+     * Edit orders assembly
+     *
+     * @param array  $pack pack data
+     * @param string $site (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersPacksEdit(array $pack, $site = null)
+    {
+        if (!count($pack) || empty($pack['id'])) {
+            throw new \InvalidArgumentException(
+                'Parameter `pack` must contains a data & pack `id` must be set'
+            );
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/orders/packs/%s/edit', $pack['id']),
+            "POST",
+            $this->fillSite($site, ['pack' => json_encode($pack)])
+        );
+    }
+}
diff --git a/lib/RetailCrm/Methods/V3/References.php b/lib/RetailCrm/Methods/V3/References.php
new file mode 100644
index 0000000..4b9279b
--- /dev/null
+++ b/lib/RetailCrm/Methods/V3/References.php
@@ -0,0 +1,499 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V3;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait References
+{
+    /**
+     * Returns available county list
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function countriesList()
+    {
+        return $this->client->makeRequest(
+            '/reference/countries',
+            "GET"
+        );
+    }
+
+    /**
+     * Returns deliveryServices list
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function deliveryServicesList()
+    {
+        return $this->client->makeRequest(
+            '/reference/delivery-services',
+            "GET"
+        );
+    }
+
+    /**
+     * Edit deliveryService
+     *
+     * @param array $data delivery service data
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function deliveryServicesEdit(array $data)
+    {
+        if (!array_key_exists('code', $data)) {
+            throw new \InvalidArgumentException(
+                'Data must contain "code" parameter.'
+            );
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/reference/delivery-services/%s/edit', $data['code']),
+            "POST",
+            ['deliveryService' => json_encode($data)]
+        );
+    }
+
+    /**
+     * Returns deliveryTypes list
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function deliveryTypesList()
+    {
+        return $this->client->makeRequest(
+            '/reference/delivery-types',
+            "GET"
+        );
+    }
+
+    /**
+     * Edit deliveryType
+     *
+     * @param array $data delivery type data
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function deliveryTypesEdit(array $data)
+    {
+        if (!array_key_exists('code', $data)) {
+            throw new \InvalidArgumentException(
+                'Data must contain "code" parameter.'
+            );
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/reference/delivery-types/%s/edit', $data['code']),
+            "POST",
+            ['deliveryType' => json_encode($data)]
+        );
+    }
+
+    /**
+     * Returns orderMethods list
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function orderMethodsList()
+    {
+        return $this->client->makeRequest(
+            '/reference/order-methods',
+            "GET"
+        );
+    }
+
+    /**
+     * Edit orderMethod
+     *
+     * @param array $data order method data
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function orderMethodsEdit(array $data)
+    {
+        if (!array_key_exists('code', $data)) {
+            throw new \InvalidArgumentException(
+                'Data must contain "code" parameter.'
+            );
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/reference/order-methods/%s/edit', $data['code']),
+            "POST",
+            ['orderMethod' => json_encode($data)]
+        );
+    }
+
+    /**
+     * Returns orderTypes list
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function orderTypesList()
+    {
+        return $this->client->makeRequest(
+            '/reference/order-types',
+            "GET"
+        );
+    }
+
+    /**
+     * Edit orderType
+     *
+     * @param array $data order type data
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function orderTypesEdit(array $data)
+    {
+        if (!array_key_exists('code', $data)) {
+            throw new \InvalidArgumentException(
+                'Data must contain "code" parameter.'
+            );
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/reference/order-types/%s/edit', $data['code']),
+            "POST",
+            ['orderType' => json_encode($data)]
+        );
+    }
+
+    /**
+     * Returns paymentStatuses list
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function paymentStatusesList()
+    {
+        return $this->client->makeRequest(
+            '/reference/payment-statuses',
+            "GET"
+        );
+    }
+
+    /**
+     * Edit paymentStatus
+     *
+     * @param array $data payment status data
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function paymentStatusesEdit(array $data)
+    {
+        if (!array_key_exists('code', $data)) {
+            throw new \InvalidArgumentException(
+                'Data must contain "code" parameter.'
+            );
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/reference/payment-statuses/%s/edit', $data['code']),
+            "POST",
+            ['paymentStatus' => json_encode($data)]
+        );
+    }
+
+    /**
+     * Returns paymentTypes list
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function paymentTypesList()
+    {
+        return $this->client->makeRequest(
+            '/reference/payment-types',
+            "GET"
+        );
+    }
+
+    /**
+     * Edit paymentType
+     *
+     * @param array $data payment type data
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function paymentTypesEdit(array $data)
+    {
+        if (!array_key_exists('code', $data)) {
+            throw new \InvalidArgumentException(
+                'Data must contain "code" parameter.'
+            );
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/reference/payment-types/%s/edit', $data['code']),
+            "POST",
+            ['paymentType' => json_encode($data)]
+        );
+    }
+
+    /**
+     * Returns productStatuses list
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function productStatusesList()
+    {
+        return $this->client->makeRequest(
+            '/reference/product-statuses',
+            "GET"
+        );
+    }
+
+    /**
+     * Edit productStatus
+     *
+     * @param array $data product status data
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function productStatusesEdit(array $data)
+    {
+        if (!array_key_exists('code', $data)) {
+            throw new \InvalidArgumentException(
+                'Data must contain "code" parameter.'
+            );
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/reference/product-statuses/%s/edit', $data['code']),
+            "POST",
+            ['productStatus' => json_encode($data)]
+        );
+    }
+
+    /**
+     * Returns sites list
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function sitesList()
+    {
+        return $this->client->makeRequest(
+            '/reference/sites',
+            "GET"
+        );
+    }
+
+    /**
+     * Edit site
+     *
+     * @param array $data site data
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function sitesEdit(array $data)
+    {
+        if (!array_key_exists('code', $data)) {
+            throw new \InvalidArgumentException(
+                'Data must contain "code" parameter.'
+            );
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/reference/sites/%s/edit', $data['code']),
+            "POST",
+            ['site' => json_encode($data)]
+        );
+    }
+
+    /**
+     * Returns statusGroups list
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function statusGroupsList()
+    {
+        return $this->client->makeRequest(
+            '/reference/status-groups',
+            "GET"
+        );
+    }
+
+    /**
+     * Returns statuses list
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function statusesList()
+    {
+        return $this->client->makeRequest(
+            '/reference/statuses',
+            "GET"
+        );
+    }
+
+    /**
+     * Edit order status
+     *
+     * @param array $data status data
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function statusesEdit(array $data)
+    {
+        if (!array_key_exists('code', $data)) {
+            throw new \InvalidArgumentException(
+                'Data must contain "code" parameter.'
+            );
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/reference/statuses/%s/edit', $data['code']),
+            "POST",
+            ['status' => json_encode($data)]
+        );
+    }
+
+    /**
+     * Returns stores list
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function storesList()
+    {
+        return $this->client->makeRequest(
+            '/reference/stores',
+            "GET"
+        );
+    }
+
+    /**
+     * Edit store
+     *
+     * @param array $data site data
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function storesEdit(array $data)
+    {
+        if (!array_key_exists('code', $data)) {
+            throw new \InvalidArgumentException(
+                'Data must contain "code" parameter.'
+            );
+        }
+
+        if (!array_key_exists('name', $data)) {
+            throw new \InvalidArgumentException(
+                'Data must contain "name" parameter.'
+            );
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/reference/stores/%s/edit', $data['code']),
+            "POST",
+            ['store' => json_encode($data)]
+        );
+    }
+}
diff --git a/lib/RetailCrm/Methods/V3/Statistic.php b/lib/RetailCrm/Methods/V3/Statistic.php
new file mode 100644
index 0000000..ed49eb2
--- /dev/null
+++ b/lib/RetailCrm/Methods/V3/Statistic.php
@@ -0,0 +1,46 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * Statistic class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V3;
+
+/**
+ * PHP version 5.4
+ *
+ * Statistic class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Statistic
+{
+    /**
+     * Update CRM basic statistic
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function statisticUpdate()
+    {
+        return $this->client->makeRequest(
+            '/statistic/update',
+            "GET"
+        );
+    }
+}
diff --git a/lib/RetailCrm/Methods/V3/Stores.php b/lib/RetailCrm/Methods/V3/Stores.php
new file mode 100644
index 0000000..8b9022b
--- /dev/null
+++ b/lib/RetailCrm/Methods/V3/Stores.php
@@ -0,0 +1,90 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V3;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Stores
+{
+    /**
+     * Get purchace prices & stock balance
+     *
+     * @param array $filter (default: array())
+     * @param int   $page   (default: null)
+     * @param int   $limit  (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function storeInventories(array $filter = [], $page = null, $limit = null)
+    {
+        $parameters = [];
+
+        if (count($filter)) {
+            $parameters['filter'] = $filter;
+        }
+        if (null !== $page) {
+            $parameters['page'] = (int) $page;
+        }
+        if (null !== $limit) {
+            $parameters['limit'] = (int) $limit;
+        }
+
+        return $this->client->makeRequest(
+            '/store/inventories',
+            "GET",
+            $parameters
+        );
+    }
+
+    /**
+     * Upload store inventories
+     *
+     * @param array  $offers offers data
+     * @param string $site   (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function storeInventoriesUpload(array $offers, $site = null)
+    {
+        if (!count($offers)) {
+            throw new \InvalidArgumentException(
+                'Parameter `offers` must contains array of the offers'
+            );
+        }
+
+        return $this->client->makeRequest(
+            '/store/inventories/upload',
+            "POST",
+            $this->fillSite($site, ['offers' => json_encode($offers)])
+        );
+    }
+}
diff --git a/lib/RetailCrm/Methods/V3/Telephony.php b/lib/RetailCrm/Methods/V3/Telephony.php
new file mode 100644
index 0000000..8e0bbad
--- /dev/null
+++ b/lib/RetailCrm/Methods/V3/Telephony.php
@@ -0,0 +1,156 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * Telephony
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V3;
+
+/**
+ * PHP version 5.4
+ *
+ * Telephony class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Telephony
+{
+    /**
+     * Get telephony settings
+     *
+     * @param string $code
+     *
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \InvalidArgumentException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function telephonySettingsGet($code)
+    {
+        if (empty($code)) {
+            throw new \InvalidArgumentException('Parameter `code` must be set');
+        }
+
+        return $this->client->makeRequest(
+            "/telephony/setting/$code",
+            "GET"
+        );
+    }
+
+    /**
+     * Call event
+     *
+     * @param string $phone phone number
+     * @param string $type  call type
+     * @param array  $codes
+     * @param string $hangupStatus
+     * @param string $externalPhone
+     * @param array  $webAnalyticsData
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     * @internal param string $code additional phone code
+     * @internal param string $status call status
+     *
+     */
+    public function telephonyCallEvent(
+        $phone,
+        $type,
+        $codes,
+        $hangupStatus,
+        $externalPhone = null,
+        $webAnalyticsData = []
+    ) {
+        if (!isset($phone)) {
+            throw new \InvalidArgumentException('Phone number must be set');
+        }
+
+        if (!isset($type)) {
+            throw new \InvalidArgumentException('Type must be set (in|out|hangup)');
+        }
+
+        if (empty($codes)) {
+            throw new \InvalidArgumentException('Codes array must be set');
+        }
+
+        $parameters['phone'] = $phone;
+        $parameters['type'] = $type;
+        $parameters['codes'] = $codes;
+        $parameters['hangupStatus'] = $hangupStatus;
+        $parameters['callExternalId'] = $externalPhone;
+        $parameters['webAnalyticsData'] = $webAnalyticsData;
+
+
+        return $this->client->makeRequest(
+            '/telephony/call/event',
+            "POST",
+            ['event' => json_encode($parameters)]
+        );
+    }
+
+    /**
+     * Upload calls
+     *
+     * @param array $calls calls data
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function telephonyCallsUpload(array $calls)
+    {
+        if (!count($calls)) {
+            throw new \InvalidArgumentException(
+                'Parameter `calls` must contains array of the calls'
+            );
+        }
+
+        return $this->client->makeRequest(
+            '/telephony/calls/upload',
+            "POST",
+            ['calls' => json_encode($calls)]
+        );
+    }
+
+    /**
+     * Get call manager
+     *
+     * @param string $phone   phone number
+     * @param bool   $details detailed information
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function telephonyCallManager($phone, $details)
+    {
+        if (!isset($phone)) {
+            throw new \InvalidArgumentException('Phone number must be set');
+        }
+
+        $parameters['phone'] = $phone;
+        $parameters['details'] = isset($details) ? $details : 0;
+
+        return $this->client->makeRequest(
+            '/telephony/manager',
+            "GET",
+            $parameters
+        );
+    }
+}
diff --git a/lib/RetailCrm/Methods/V4/Customers.php b/lib/RetailCrm/Methods/V4/Customers.php
new file mode 100644
index 0000000..0ccf28d
--- /dev/null
+++ b/lib/RetailCrm/Methods/V4/Customers.php
@@ -0,0 +1,62 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V4;
+
+use RetailCrm\Methods\V3\Customers as Previous;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Customers
+{
+    use Previous;
+
+    /**
+     * Get customers history
+     * @param array $filter
+     * @param null $page
+     * @param null $limit
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function customersHistory(array $filter = [], $page = null, $limit = null)
+    {
+        $parameters = [];
+
+        if (count($filter)) {
+            $parameters['filter'] = $filter;
+        }
+        if (null !== $page) {
+            $parameters['page'] = (int) $page;
+        }
+        if (null !== $limit) {
+            $parameters['limit'] = (int) $limit;
+        }
+
+        return $this->client->makeRequest(
+            '/customers/history',
+            "GET",
+            $parameters
+        );
+    }
+}
diff --git a/lib/RetailCrm/Methods/V4/Delivery.php b/lib/RetailCrm/Methods/V4/Delivery.php
new file mode 100644
index 0000000..6c15a01
--- /dev/null
+++ b/lib/RetailCrm/Methods/V4/Delivery.php
@@ -0,0 +1,109 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V4;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Delivery
+{
+    /**
+     * Get delivery settings
+     *
+     * @param string $code
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function deliverySettingsGet($code)
+    {
+        if (empty($code)) {
+            throw new \InvalidArgumentException('Parameter `code` must be set');
+        }
+
+        return $this->client->makeRequest(
+            "/delivery/generic/setting/$code",
+            "GET"
+        );
+    }
+
+    /**
+     * Edit delivery configuration
+     *
+     * @param array $configuration
+     *
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \InvalidArgumentException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function deliverySettingsEdit(array $configuration)
+    {
+        if (!count($configuration) || empty($configuration['code'])) {
+            throw new \InvalidArgumentException(
+                'Parameter `configuration` must contains a data & configuration `code` must be set'
+            );
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/delivery/generic/setting/%s/edit', $configuration['code']),
+            "POST",
+            ['configuration' => json_encode($configuration)]
+        );
+    }
+
+    /**
+     * Delivery tracking update
+     *
+     * @param string $code
+     * @param array  $statusUpdate
+     *
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \InvalidArgumentException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function deliveryTracking($code, array $statusUpdate)
+    {
+        if (empty($code)) {
+            throw new \InvalidArgumentException('Parameter `code` must be set');
+        }
+
+        if (!count($statusUpdate)) {
+            throw new \InvalidArgumentException(
+                'Parameter `statusUpdate` must contains a data'
+            );
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/delivery/generic/%s/tracking', $code),
+            "POST",
+            ['statusUpdate' => json_encode($statusUpdate)]
+        );
+    }
+}
diff --git a/lib/RetailCrm/Methods/V4/Marketplace.php b/lib/RetailCrm/Methods/V4/Marketplace.php
new file mode 100644
index 0000000..d9fbab9
--- /dev/null
+++ b/lib/RetailCrm/Methods/V4/Marketplace.php
@@ -0,0 +1,56 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * Marketplace
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V4;
+
+/**
+ * PHP version 5.4
+ *
+ * Marketplace class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Marketplace
+{
+
+    /**
+     * Edit marketplace configuration
+     *
+     * @param array $configuration
+     *
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \InvalidArgumentException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function marketplaceSettingsEdit(array $configuration)
+    {
+        if (!count($configuration) || empty($configuration['code'])) {
+            throw new \InvalidArgumentException(
+                'Parameter `configuration` must contains a data & configuration `code` must be set'
+            );
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/marketplace/external/setting/%s/edit', $configuration['code']),
+            "POST",
+            ['configuration' => json_encode($configuration)]
+        );
+    }
+}
diff --git a/lib/RetailCrm/Methods/V4/Orders.php b/lib/RetailCrm/Methods/V4/Orders.php
new file mode 100644
index 0000000..dc8bb80
--- /dev/null
+++ b/lib/RetailCrm/Methods/V4/Orders.php
@@ -0,0 +1,271 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V4;
+
+use RetailCrm\Methods\V3\Orders as Previous;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Orders
+{
+
+    use Previous;
+
+    /**
+     * Returns filtered orders list
+     *
+     * @param array $filter (default: array())
+     * @param int   $page   (default: null)
+     * @param int   $limit  (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersList(array $filter = [], $page = null, $limit = null)
+    {
+        $parameters = [];
+
+        if (count($filter)) {
+            $parameters['filter'] = $filter;
+        }
+        if (null !== $page) {
+            $parameters['page'] = (int) $page;
+        }
+        if (null !== $limit) {
+            $parameters['limit'] = (int) $limit;
+        }
+
+        return $this->client->makeRequest(
+            '/orders',
+            "GET",
+            $parameters
+        );
+    }
+
+    /**
+     * Create an order
+     *
+     * @param array  $order order data
+     * @param string $site  (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersCreate(array $order, $site = null)
+    {
+        if (!count($order)) {
+            throw new \InvalidArgumentException(
+                'Parameter `order` must contains a data'
+            );
+        }
+
+        return $this->client->makeRequest(
+            '/orders/create',
+            "POST",
+            $this->fillSite($site, ['order' => json_encode($order)])
+        );
+    }
+
+    /**
+     * Save order IDs' (id and externalId) association into CRM
+     *
+     * @param array $ids order identificators
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersFixExternalIds(array $ids)
+    {
+        if (! count($ids)) {
+            throw new \InvalidArgumentException(
+                'Method parameter must contains at least one IDs pair'
+            );
+        }
+
+        return $this->client->makeRequest(
+            '/orders/fix-external-ids',
+            "POST",
+            ['orders' => json_encode($ids)
+            ]
+        );
+    }
+
+    /**
+     * Returns statuses of the orders
+     *
+     * @param array $ids         (default: array())
+     * @param array $externalIds (default: array())
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersStatuses(array $ids = [], array $externalIds = [])
+    {
+        $parameters = [];
+
+        if (count($ids)) {
+            $parameters['ids'] = $ids;
+        }
+        if (count($externalIds)) {
+            $parameters['externalIds'] = $externalIds;
+        }
+
+        return $this->client->makeRequest(
+            '/orders/statuses',
+            "GET",
+            $parameters
+        );
+    }
+
+    /**
+     * Upload array of the orders
+     *
+     * @param array  $orders array of orders
+     * @param string $site   (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersUpload(array $orders, $site = null)
+    {
+        if (!count($orders)) {
+            throw new \InvalidArgumentException(
+                'Parameter `orders` must contains array of the orders'
+            );
+        }
+
+        return $this->client->makeRequest(
+            '/orders/upload',
+            "POST",
+            $this->fillSite($site, ['orders' => json_encode($orders)])
+        );
+    }
+
+    /**
+     * Get order by id or externalId
+     *
+     * @param string $id   order identificator
+     * @param string $by   (default: 'externalId')
+     * @param string $site (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersGet($id, $by = 'externalId', $site = null)
+    {
+        $this->checkIdParameter($by);
+
+        return $this->client->makeRequest(
+            "/orders/$id",
+            "GET",
+            $this->fillSite($site, ['by' => $by])
+        );
+    }
+
+    /**
+     * Edit an order
+     *
+     * @param array  $order order data
+     * @param string $by    (default: 'externalId')
+     * @param string $site  (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersEdit(array $order, $by = 'externalId', $site = null)
+    {
+        if (!count($order)) {
+            throw new \InvalidArgumentException(
+                'Parameter `order` must contains a data'
+            );
+        }
+
+        $this->checkIdParameter($by);
+
+        if (!array_key_exists($by, $order)) {
+            throw new \InvalidArgumentException(
+                sprintf('Order array must contain the "%s" parameter.', $by)
+            );
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/orders/%s/edit', $order[$by]),
+            "POST",
+            $this->fillSite(
+                $site,
+                ['order' => json_encode($order), 'by' => $by]
+            )
+        );
+    }
+
+    /**
+     * Get orders history
+     * @param array $filter
+     * @param null $page
+     * @param null $limit
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersHistory(array $filter = [], $page = null, $limit = null)
+    {
+        $parameters = [];
+
+        if (count($filter)) {
+            $parameters['filter'] = $filter;
+        }
+        if (null !== $page) {
+            $parameters['page'] = (int) $page;
+        }
+        if (null !== $limit) {
+            $parameters['limit'] = (int) $limit;
+        }
+
+        return $this->client->makeRequest(
+            '/orders/history',
+            "GET",
+            $parameters
+        );
+    }
+}
diff --git a/lib/RetailCrm/Methods/V4/Packs.php b/lib/RetailCrm/Methods/V4/Packs.php
new file mode 100644
index 0000000..04fc4b9
--- /dev/null
+++ b/lib/RetailCrm/Methods/V4/Packs.php
@@ -0,0 +1,33 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V4;
+
+use RetailCrm\Methods\V3\Packs as Previous;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Packs
+{
+    use Previous;
+}
diff --git a/lib/RetailCrm/Methods/V4/References.php b/lib/RetailCrm/Methods/V4/References.php
new file mode 100644
index 0000000..e40f454
--- /dev/null
+++ b/lib/RetailCrm/Methods/V4/References.php
@@ -0,0 +1,81 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V4;
+
+use RetailCrm\Methods\V3\References as Previous;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait References
+{
+    use Previous;
+
+    /**
+     * Get prices types
+     *
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function pricesTypes()
+    {
+        return $this->client->makeRequest(
+            '/reference/price-types',
+            "GET"
+        );
+    }
+
+    /**
+     * Edit price type
+     *
+     * @param array $data
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function pricesTypesEdit(array $data)
+    {
+        if (!array_key_exists('code', $data)) {
+            throw new \InvalidArgumentException(
+                'Data must contain "code" parameter.'
+            );
+        }
+
+        if (!array_key_exists('name', $data)) {
+            throw new \InvalidArgumentException(
+                'Data must contain "name" parameter.'
+            );
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/reference/price-types/%s/edit', $data['code']),
+            "POST",
+            ['priceType' => json_encode($data)]
+        );
+    }
+}
diff --git a/lib/RetailCrm/Methods/V4/Statistic.php b/lib/RetailCrm/Methods/V4/Statistic.php
new file mode 100644
index 0000000..be8bb8a
--- /dev/null
+++ b/lib/RetailCrm/Methods/V4/Statistic.php
@@ -0,0 +1,33 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V4;
+
+use RetailCrm\Methods\V3\Statistic as Previous;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Statistic
+{
+    use Previous;
+}
diff --git a/lib/RetailCrm/Methods/V4/Stores.php b/lib/RetailCrm/Methods/V4/Stores.php
new file mode 100644
index 0000000..69e8515
--- /dev/null
+++ b/lib/RetailCrm/Methods/V4/Stores.php
@@ -0,0 +1,144 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V4;
+
+use RetailCrm\Methods\V3\Stores as Previous;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Stores
+{
+    use Previous;
+
+    /**
+     * Get store settings
+     *
+     * @param string $code get settings code
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \InvalidArgumentException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function storeSettingsGet($code)
+    {
+        if (empty($code)) {
+            throw new \InvalidArgumentException('Parameter `code` must be set');
+        }
+
+        return $this->client->makeRequest(
+            "/store/setting/$code",
+            "GET"
+        );
+    }
+
+    /**
+     * Edit store configuration
+     *
+     * @param array $configuration
+     *
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \InvalidArgumentException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function storeSettingsEdit(array $configuration)
+    {
+        if (!count($configuration) || empty($configuration['code'])) {
+            throw new \InvalidArgumentException(
+                'Parameter `configuration` must contains a data & configuration `code` must be set'
+            );
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/store/setting/%s/edit', $configuration['code']),
+            "POST",
+            ['configuration' => json_encode($configuration)]
+        );
+    }
+
+    /**
+     * Upload store prices
+     *
+     * @param array  $prices prices data
+     * @param string $site   default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function storePricesUpload(array $prices, $site = null)
+    {
+        if (!count($prices)) {
+            throw new \InvalidArgumentException(
+                'Parameter `prices` must contains array of the prices'
+            );
+        }
+
+        return $this->client->makeRequest(
+            '/store/prices/upload',
+            "POST",
+            $this->fillSite($site, ['prices' => json_encode($prices)])
+        );
+    }
+
+    /**
+     * Get products
+     *
+     * @param array $filter (default: array())
+     * @param int   $page   (default: null)
+     * @param int   $limit  (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function storeProducts(array $filter = [], $page = null, $limit = null)
+    {
+        $parameters = [];
+
+        if (count($filter)) {
+            $parameters['filter'] = $filter;
+        }
+        if (null !== $page) {
+            $parameters['page'] = (int) $page;
+        }
+        if (null !== $limit) {
+            $parameters['limit'] = (int) $limit;
+        }
+
+        return $this->client->makeRequest(
+            '/store/products',
+            "GET",
+            $parameters
+        );
+    }
+}
diff --git a/lib/RetailCrm/Methods/V4/Telephony.php b/lib/RetailCrm/Methods/V4/Telephony.php
new file mode 100644
index 0000000..c9bac37
--- /dev/null
+++ b/lib/RetailCrm/Methods/V4/Telephony.php
@@ -0,0 +1,137 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * Telephony
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V4;
+
+use RetailCrm\Methods\V3\Telephony as Previous;
+
+/**
+ * PHP version 5.4
+ *
+ * Telephony class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Telephony
+{
+    use Previous;
+
+    /**
+     * Edit telephony settings
+     *
+     * @param string  $code        symbolic code
+     * @param string  $clientId    client id
+     * @param boolean $active      telephony activity
+     * @param mixed   $name        service name
+     * @param mixed   $makeCallUrl service init url
+     * @param mixed   $image       service logo url(svg file)
+     *
+     * @param array   $additionalCodes
+     * @param array   $externalPhones
+     * @param bool    $allowEdit
+     * @param bool    $inputEventSupported
+     * @param bool    $outputEventSupported
+     * @param bool    $hangupEventSupported
+     * @param bool    $changeUserStatusUrl
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function telephonySettingsEdit(
+        $code,
+        $clientId,
+        $active = false,
+        $name = false,
+        $makeCallUrl = false,
+        $image = false,
+        $additionalCodes = [],
+        $externalPhones = [],
+        $allowEdit = false,
+        $inputEventSupported = false,
+        $outputEventSupported = false,
+        $hangupEventSupported = false,
+        $changeUserStatusUrl = false
+    ) {
+        if (!isset($code)) {
+            throw new \InvalidArgumentException('Code must be set');
+        }
+
+        $parameters['code'] = $code;
+
+        if (!isset($clientId)) {
+            throw new \InvalidArgumentException('client id must be set');
+        }
+
+        $parameters['clientId'] = $clientId;
+
+        if (!isset($active)) {
+            $parameters['active'] = false;
+        } else {
+            $parameters['active'] = $active;
+        }
+
+        if (!isset($name)) {
+            throw new \InvalidArgumentException('name must be set');
+        }
+
+        if (isset($name)) {
+            $parameters['name'] = $name;
+        }
+
+        if (isset($makeCallUrl)) {
+            $parameters['makeCallUrl'] = $makeCallUrl;
+        }
+
+        if (isset($image)) {
+            $parameters['image'] = $image;
+        }
+
+        if (isset($additionalCodes)) {
+            $parameters['additionalCodes'] = $additionalCodes;
+        }
+
+        if (isset($externalPhones)) {
+            $parameters['externalPhones'] = $externalPhones;
+        }
+
+        if (isset($allowEdit)) {
+            $parameters['allowEdit'] = $allowEdit;
+        }
+
+        if (isset($inputEventSupported)) {
+            $parameters['inputEventSupported'] = $inputEventSupported;
+        }
+
+        if (isset($outputEventSupported)) {
+            $parameters['outputEventSupported'] = $outputEventSupported;
+        }
+
+        if (isset($hangupEventSupported)) {
+            $parameters['hangupEventSupported'] = $hangupEventSupported;
+        }
+
+        if (isset($changeUserStatusUrl)) {
+            $parameters['changeUserStatusUrl'] = $changeUserStatusUrl;
+        }
+
+        return $this->client->makeRequest(
+            "/telephony/setting/$code/edit",
+            "POST",
+            ['configuration' => json_encode($parameters)]
+        );
+    }
+}
diff --git a/lib/RetailCrm/Methods/V4/Users.php b/lib/RetailCrm/Methods/V4/Users.php
new file mode 100644
index 0000000..8f778cf
--- /dev/null
+++ b/lib/RetailCrm/Methods/V4/Users.php
@@ -0,0 +1,111 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V4;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Users
+{
+    /**
+     * Returns users list
+     *
+     * @param array $filter
+     * @param null  $page
+     * @param null  $limit
+     *
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \InvalidArgumentException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function usersList(array $filter = [], $page = null, $limit = null)
+    {
+        $parameters = [];
+
+        if (count($filter)) {
+            $parameters['filter'] = $filter;
+        }
+        if (null !== $page) {
+            $parameters['page'] = (int)$page;
+        }
+        if (null !== $limit) {
+            $parameters['limit'] = (int)$limit;
+        }
+
+        /** @noinspection PhpUndefinedMethodInspection */
+        return $this->client->makeRequest(
+            '/users',
+            "GET",
+            $parameters
+        );
+    }
+
+    /**
+     * Get user groups
+     *
+     * @param null $page
+     * @param null $limit
+     *
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     * @throws \RetailCrm\Exception\CurlException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function usersGroups($page = null, $limit = null)
+    {
+        $parameters = [];
+
+        if (null !== $page) {
+            $parameters['page'] = (int)$page;
+        }
+        if (null !== $limit) {
+            $parameters['limit'] = (int)$limit;
+        }
+
+        /** @noinspection PhpUndefinedMethodInspection */
+        return $this->client->makeRequest(
+            '/user-groups',
+            "GET",
+            $parameters
+        );
+    }
+
+    /**
+     * Returns user data
+     *
+     * @param integer $id user ID
+     *
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \InvalidArgumentException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function usersGet($id)
+    {
+        /** @noinspection PhpUndefinedMethodInspection */
+        return $this->client->makeRequest("/users/$id", "GET");
+    }
+}
diff --git a/lib/RetailCrm/Methods/V5/CustomFields.php b/lib/RetailCrm/Methods/V5/CustomFields.php
new file mode 100644
index 0000000..9e87ba7
--- /dev/null
+++ b/lib/RetailCrm/Methods/V5/CustomFields.php
@@ -0,0 +1,250 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * CustomFields
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V5;
+
+/**
+ * PHP version 5.4
+ *
+ * CustomFields class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait CustomFields
+{
+    /**
+     * Get custom fields list
+     *
+     * @param array $filter
+     * @param null  $limit
+     * @param null  $page
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function customFieldsList(array $filter = [], $limit = null, $page = null)
+    {
+        $parameters = [];
+
+        if (count($filter)) {
+            $parameters['filter'] = $filter;
+        }
+        if (null !== $page) {
+            $parameters['page'] = (int) $page;
+        }
+        if (null !== $limit) {
+            $parameters['limit'] = (int) $limit;
+        }
+
+        return $this->client->makeRequest(
+            '/custom-fields',
+            "GET",
+            $parameters
+        );
+    }
+
+    /**
+     * Create custom field
+     *
+     * @param $entity
+     * @param $customField
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function customFieldsCreate($entity, $customField)
+    {
+        if (!count($customField) ||
+            empty($customField['code']) ||
+            empty($customField['name']) ||
+            empty($customField['type'])
+        ) {
+            throw new \InvalidArgumentException(
+                'Parameter `customField` must contain a data & fields `code`, `name` & `type` must be set'
+            );
+        }
+
+        if (empty($entity) || $entity != 'customer' || $entity != 'order') {
+            throw new \InvalidArgumentException(
+                'Parameter `entity` must contain a data & value must be `order` or `customer`'
+            );
+        }
+
+        return $this->client->makeRequest(
+            "/custom-fields/$entity/create",
+            "POST",
+            ['customField' => json_encode($customField)]
+        );
+    }
+
+    /**
+     * Edit custom field
+     *
+     * @param $entity
+     * @param $customField
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function customFieldsEdit($entity, $customField)
+    {
+        if (!count($customField) || empty($customField['code'])) {
+            throw new \InvalidArgumentException(
+                'Parameter `customField` must contain a data & fields `code` must be set'
+            );
+        }
+
+        if (empty($entity) || $entity != 'customer' || $entity != 'order') {
+            throw new \InvalidArgumentException(
+                'Parameter `entity` must contain a data & value must be `order` or `customer`'
+            );
+        }
+
+        return $this->client->makeRequest(
+            "/custom-fields/$entity/edit/{$customField['code']}",
+            "POST",
+            ['customField' => json_encode($customField)]
+        );
+    }
+
+    /**
+     * Get custom field
+     *
+     * @param $entity
+     * @param $code
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function customFieldsGet($entity, $code)
+    {
+        if (empty($code)) {
+            throw new \InvalidArgumentException(
+                'Parameter `code` must be not empty'
+            );
+        }
+
+        if (empty($entity) || $entity != 'customer' || $entity != 'order') {
+            throw new \InvalidArgumentException(
+                'Parameter `entity` must contain a data & value must be `order` or `customer`'
+            );
+        }
+
+        return $this->client->makeRequest(
+            "/custom-fields/$entity/$code",
+            "GET"
+        );
+    }
+
+    /**
+     * Get custom dictionaries list
+     *
+     * @param array $filter
+     * @param null  $limit
+     * @param null  $page
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function customDictionariesList(array $filter = [], $limit = null, $page = null)
+    {
+        $parameters = [];
+
+        if (count($filter)) {
+            $parameters['filter'] = $filter;
+        }
+        if (null !== $page) {
+            $parameters['page'] = (int) $page;
+        }
+        if (null !== $limit) {
+            $parameters['limit'] = (int) $limit;
+        }
+
+        return $this->client->makeRequest(
+            '/custom-fields/dictionaries',
+            "GET",
+            $parameters
+        );
+    }
+
+    /**
+     * Create custom dictionary
+     *
+     * @param $customDictionary
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function customDictionariesCreate($customDictionary)
+    {
+        if (!count($customDictionary) ||
+            empty($customDictionary['code']) ||
+            empty($customDictionary['elements'])
+        ) {
+            throw new \InvalidArgumentException(
+                'Parameter `dictionary` must contain a data & fields `code` & `elemets` must be set'
+            );
+        }
+
+        return $this->client->makeRequest(
+            "/custom-fields/dictionaries/{$customDictionary['code']}/create",
+            "POST",
+            ['customDictionary' => json_encode($customDictionary)]
+        );
+    }
+
+    /**
+     * Edit custom dictionary
+     *
+     * @param $customDictionary
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function customDictionariesEdit($customDictionary)
+    {
+        if (!count($customDictionary) ||
+            empty($customDictionary['code']) ||
+            empty($customDictionary['elements'])
+        ) {
+            throw new \InvalidArgumentException(
+                'Parameter `dictionary` must contain a data & fields `code` & `elemets` must be set'
+            );
+        }
+
+        return $this->client->makeRequest(
+            "/custom-fields/dictionaries/{$customDictionary['code']}/edit",
+            "POST",
+            ['customDictionary' => json_encode($customDictionary)]
+        );
+    }
+
+    /**
+     * Get custom dictionary
+     *
+     * @param $code
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function customDictionariesGet($code)
+    {
+        if (empty($code)) {
+            throw new \InvalidArgumentException(
+                'Parameter `code` must be not empty'
+            );
+        }
+
+        return $this->client->makeRequest(
+            "/custom-fields/dictionaries/$code",
+            "GET"
+        );
+    }
+}
diff --git a/lib/RetailCrm/Methods/V5/Customers.php b/lib/RetailCrm/Methods/V5/Customers.php
new file mode 100644
index 0000000..2c420ff
--- /dev/null
+++ b/lib/RetailCrm/Methods/V5/Customers.php
@@ -0,0 +1,146 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V5;
+
+use RetailCrm\Methods\V4\Customers as Previous;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Customers
+{
+    use Previous;
+
+    /**
+     * Combine customers
+     *
+     * @param array $customers
+     * @param array $resultCustomer
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function customersCombine(array $customers, $resultCustomer)
+    {
+
+        if (!count($customers) || !count($resultCustomer)) {
+            throw new \InvalidArgumentException(
+                'Parameters `customers` & `resultCustomer` must contains a data'
+            );
+        }
+
+        return $this->client->makeRequest(
+            '/customers/combine',
+            "POST",
+            [
+                'customers' => json_encode($customers),
+                'resultCustomer' => json_encode($resultCustomer)
+            ]
+        );
+    }
+
+    /**
+     * Returns filtered customers notes list
+     *
+     * @param array $filter (default: array())
+     * @param int   $page   (default: null)
+     * @param int   $limit  (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function customersNotesList(array $filter = [], $page = null, $limit = null)
+    {
+        $parameters = [];
+
+        if (count($filter)) {
+            $parameters['filter'] = $filter;
+        }
+        if (null !== $page) {
+            $parameters['page'] = (int) $page;
+        }
+        if (null !== $limit) {
+            $parameters['limit'] = (int) $limit;
+        }
+
+        return $this->client->makeRequest(
+            '/customers/notes',
+            "GET",
+            $parameters
+        );
+    }
+
+    /**
+     * Create customer note
+     *
+     * @param array $note (default: array())
+     * @param string $site     (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function customersNotesCreate($note, $site = null)
+    {
+        if (empty($note['customer']['id']) && empty($note['customer']['externalId'])) {
+            throw new \InvalidArgumentException(
+                'Customer identifier must be set'
+            );
+        }
+
+        return $this->client->makeRequest(
+            '/customers/notes/create',
+            "POST",
+            ['note' => json_encode($note)]
+        );
+    }
+
+    /**
+     * Create customer note
+     *
+     * @param integer $id
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function customersNotesDelete($id)
+    {
+        if (empty($id)) {
+            throw new \InvalidArgumentException(
+                'Note id must be set'
+            );
+        }
+
+        return $this->client->makeRequest(
+            "/customers/notes/$id/delete",
+            "POST"
+        );
+    }
+}
diff --git a/lib/RetailCrm/Methods/V5/Delivery.php b/lib/RetailCrm/Methods/V5/Delivery.php
new file mode 100644
index 0000000..71ce0a0
--- /dev/null
+++ b/lib/RetailCrm/Methods/V5/Delivery.php
@@ -0,0 +1,33 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V5;
+
+use RetailCrm\Methods\V4\Delivery as Previous;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Delivery
+{
+    use Previous;
+}
diff --git a/lib/RetailCrm/Methods/V5/Marketplace.php b/lib/RetailCrm/Methods/V5/Marketplace.php
new file mode 100644
index 0000000..0611933
--- /dev/null
+++ b/lib/RetailCrm/Methods/V5/Marketplace.php
@@ -0,0 +1,33 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * Marketplace
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V5;
+
+use RetailCrm\Methods\V4\Marketplace as Previous;
+
+/**
+ * PHP version 5.4
+ *
+ * Marketplace class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Marketplace
+{
+    use Previous;
+}
diff --git a/lib/RetailCrm/Methods/V5/Orders.php b/lib/RetailCrm/Methods/V5/Orders.php
new file mode 100644
index 0000000..3116310
--- /dev/null
+++ b/lib/RetailCrm/Methods/V5/Orders.php
@@ -0,0 +1,131 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V5;
+
+use RetailCrm\Response\ApiResponse;
+use RetailCrm\Methods\V4\Orders as Previous;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Orders
+{
+    use Previous;
+
+    /**
+     * Combine orders
+     *
+     * @param string $technique
+     * @param array  $order
+     * @param array  $resultOrder
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersCombine($order, $resultOrder, $technique = 'ours')
+    {
+        $techniques = ['ours', 'summ', 'theirs'];
+
+        if (!count($order) || !count($resultOrder)) {
+            throw new \InvalidArgumentException(
+                'Parameters `order` & `resultOrder` must contains a data'
+            );
+        }
+
+        if (!in_array($technique, $techniques)) {
+            throw new \InvalidArgumentException(
+                'Parameter `technique` must be on of ours|summ|theirs'
+            );
+        }
+
+        return $this->client->makeRequest(
+            '/orders/combine',
+            "POST",
+            [
+                'technique' => $technique,
+                'order' => json_encode($order),
+                'resultOrder' => json_encode($resultOrder)
+            ]
+        );
+    }
+
+    /**
+     * Create an order payment
+     *
+     * @param array $payment order data
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersPaymentCreate(array $payment)
+    {
+        if (!count($payment)) {
+            throw new \InvalidArgumentException(
+                'Parameter `payment` must contains a data'
+            );
+        }
+
+        return $this->client->makeRequest(
+            '/orders/payments/create',
+            "POST",
+            ['payment' => json_encode($payment)]
+        );
+    }
+
+    /**
+     * Edit an order payment
+     *
+     * @param array  $payment order data
+     * @param string $by      by key
+     * @param null   $site    site code
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function ordersPaymentEdit(array $payment, $by = 'id', $site = null)
+    {
+        if (!count($payment)) {
+            throw new \InvalidArgumentException(
+                'Parameter `payment` must contains a data'
+            );
+        }
+
+        $this->checkIdParameter($by);
+
+        if (!array_key_exists($by, $payment)) {
+            throw new \InvalidArgumentException(
+                sprintf('Order array must contain the "%s" parameter.', $by)
+            );
+        }
+
+        return $this->client->makeRequest(
+            sprintf('/orders/payments/%s/edit', $payment[$by]),
+            "POST",
+            $this->fillSite(
+                $site,
+                ['payment' => json_encode($payment), 'by' => $by]
+            )
+        );
+    }
+}
diff --git a/lib/RetailCrm/Methods/V5/Packs.php b/lib/RetailCrm/Methods/V5/Packs.php
new file mode 100644
index 0000000..6db3a02
--- /dev/null
+++ b/lib/RetailCrm/Methods/V5/Packs.php
@@ -0,0 +1,33 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V5;
+
+use RetailCrm\Methods\V4\Packs as Previous;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Packs
+{
+    use Previous;
+}
diff --git a/lib/RetailCrm/Methods/V5/References.php b/lib/RetailCrm/Methods/V5/References.php
new file mode 100644
index 0000000..df6caf4
--- /dev/null
+++ b/lib/RetailCrm/Methods/V5/References.php
@@ -0,0 +1,33 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V5;
+
+use RetailCrm\Methods\V4\References as Previous;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait References
+{
+    use Previous;
+}
diff --git a/lib/RetailCrm/Methods/V5/Segments.php b/lib/RetailCrm/Methods/V5/Segments.php
new file mode 100644
index 0000000..260bdf5
--- /dev/null
+++ b/lib/RetailCrm/Methods/V5/Segments.php
@@ -0,0 +1,59 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * Segments
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V5;
+
+/**
+ * PHP version 5.4
+ *
+ * Segments class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Segments
+{
+    /**
+     * Get segments list
+     *
+     * @param array $filter
+     * @param null  $limit
+     * @param null  $page
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function segmentsList(array $filter = [], $limit = null, $page = null)
+    {
+        $parameters = [];
+
+        if (count($filter)) {
+            $parameters['filter'] = $filter;
+        }
+        if (null !== $page) {
+            $parameters['page'] = (int) $page;
+        }
+        if (null !== $limit) {
+            $parameters['limit'] = (int) $limit;
+        }
+
+        return $this->client->makeRequest(
+            '/segments',
+            "GET",
+            $parameters
+        );
+    }
+}
diff --git a/lib/RetailCrm/Methods/V5/Statistic.php b/lib/RetailCrm/Methods/V5/Statistic.php
new file mode 100644
index 0000000..c0e11c6
--- /dev/null
+++ b/lib/RetailCrm/Methods/V5/Statistic.php
@@ -0,0 +1,33 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V5;
+
+use RetailCrm\Methods\V3\Statistic as Previous;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Statistic
+{
+    use Previous;
+}
diff --git a/lib/RetailCrm/Methods/V5/Stores.php b/lib/RetailCrm/Methods/V5/Stores.php
new file mode 100644
index 0000000..8100fca
--- /dev/null
+++ b/lib/RetailCrm/Methods/V5/Stores.php
@@ -0,0 +1,67 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V5;
+
+use RetailCrm\Methods\V4\Stores as Previous;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Stores
+{
+    use Previous;
+
+    /**
+     * Get products groups
+     *
+     * @param array $filter (default: array())
+     * @param int   $page   (default: null)
+     * @param int   $limit  (default: null)
+     *
+     * @throws \InvalidArgumentException
+     * @throws \RetailCrm\Exception\CurlException
+     * @throws \RetailCrm\Exception\InvalidJsonException
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function storeProductsGroups(array $filter = [], $page = null, $limit = null)
+    {
+        $parameters = [];
+
+        if (count($filter)) {
+            $parameters['filter'] = $filter;
+        }
+        if (null !== $page) {
+            $parameters['page'] = (int) $page;
+        }
+        if (null !== $limit) {
+            $parameters['limit'] = (int) $limit;
+        }
+
+        return $this->client->makeRequest(
+            '/store/product-groups',
+            "GET",
+            $parameters
+        );
+    }
+}
diff --git a/lib/RetailCrm/Methods/V5/Tasks.php b/lib/RetailCrm/Methods/V5/Tasks.php
new file mode 100644
index 0000000..5892e89
--- /dev/null
+++ b/lib/RetailCrm/Methods/V5/Tasks.php
@@ -0,0 +1,134 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V5;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Tasks
+{
+    /**
+     * Get tasks list
+     *
+     * @param array $filter
+     * @param null  $limit
+     * @param null  $page
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function tasksList(array $filter = [], $limit = null, $page = null)
+    {
+        $parameters = [];
+
+        if (count($filter)) {
+            $parameters['filter'] = $filter;
+        }
+        if (null !== $page) {
+            $parameters['page'] = (int) $page;
+        }
+        if (null !== $limit) {
+            $parameters['limit'] = (int) $limit;
+        }
+
+        return $this->client->makeRequest(
+            '/tasks',
+            "GET",
+            $parameters
+        );
+    }
+
+    /**
+     * Create task
+     *
+     * @param array $task
+     * @param null  $site
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     *
+     */
+    public function tasksCreate($task, $site = null)
+    {
+        if (!count($task)) {
+            throw new \InvalidArgumentException(
+                'Parameter `task` must contain a data'
+            );
+        }
+
+        return $this->client->makeRequest(
+            "/tasks/create",
+            "POST",
+            $this->fillSite(
+                $site,
+                ['task' => json_encode($task)]
+            )
+        );
+    }
+
+    /**
+     * Edit task
+     *
+     * @param array $task
+     * @param null  $site
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     *
+     */
+    public function tasksEdit($task, $site = null)
+    {
+        if (!count($task)) {
+            throw new \InvalidArgumentException(
+                'Parameter `task` must contain a data'
+            );
+        }
+
+        return $this->client->makeRequest(
+            "/tasks/{$task['id']}/edit",
+            "POST",
+            $this->fillSite(
+                $site,
+                ['task' => json_encode($task)]
+            )
+        );
+    }
+
+    /**
+     * Get custom dictionary
+     *
+     * @param $id
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function tasksGet($id)
+    {
+        if (empty($id)) {
+            throw new \InvalidArgumentException(
+                'Parameter `id` must be not empty'
+            );
+        }
+
+        return $this->client->makeRequest(
+            "/tasks/$id",
+            "GET"
+        );
+    }
+}
diff --git a/lib/RetailCrm/Methods/V5/Telephony.php b/lib/RetailCrm/Methods/V5/Telephony.php
new file mode 100644
index 0000000..03ed217
--- /dev/null
+++ b/lib/RetailCrm/Methods/V5/Telephony.php
@@ -0,0 +1,33 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * Telephony
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V5;
+
+use RetailCrm\Methods\V4\Telephony as Previous;
+
+/**
+ * PHP version 5.4
+ *
+ * Telephony class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Telephony
+{
+    use Previous;
+}
diff --git a/lib/RetailCrm/Methods/V5/Users.php b/lib/RetailCrm/Methods/V5/Users.php
new file mode 100644
index 0000000..82b1331
--- /dev/null
+++ b/lib/RetailCrm/Methods/V5/Users.php
@@ -0,0 +1,60 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Methods\V5;
+
+use RetailCrm\Response\ApiResponse;
+use RetailCrm\Methods\V4\Users as Previous;
+
+/**
+ * PHP version 5.4
+ *
+ * TaskTrait class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+trait Users
+{
+    use Previous;
+
+    /**
+     * Change user status
+     *
+     * @param integer $id     user ID
+     * @param string  $status user status
+     *
+     * @return \RetailCrm\Response\ApiResponse
+     */
+    public function usersStatus($id, $status)
+    {
+        $statuses = ["free", "busy", "dinner", "break"];
+
+        if (empty($status) || !in_array($status, $statuses)) {
+            throw new \InvalidArgumentException(
+                'Parameter `status` must be not empty & must be equal one of these values: free|busy|dinner|break'
+            );
+        }
+
+        /** @noinspection PhpUndefinedMethodInspection */
+        return $this->client->makeRequest(
+            "/users/$id/status",
+            "POST",
+            ['status' => $status]
+        );
+    }
+}
diff --git a/lib/RetailCrm/Response/ApiResponse.php b/lib/RetailCrm/Response/ApiResponse.php
index 6c8efa0..7e2f776 100644
--- a/lib/RetailCrm/Response/ApiResponse.php
+++ b/lib/RetailCrm/Response/ApiResponse.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * PHP version 5.3
+ * PHP version 5.4
  *
  * Response from retailCRM API
  *
@@ -17,10 +17,11 @@ namespace RetailCrm\Response;
 use RetailCrm\Exception\InvalidJsonException;
 
 /**
- * PHP version 5.3
+ * PHP version 5.4
  *
  * Response from retailCRM API
  *
+ * @property mixed success
  * @category RetailCrm
  * @package  RetailCrm
  * @author   RetailCrm <integration@retailcrm.ru>
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index d735181..d7af0d9 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -10,8 +10,9 @@
 
     <!-- Dummy values used to provide credentials. No need to change these. -->
     <php>
-        <server name="CRM_URL" value="https://demo.retailcrm.ru" />
+        <server name="CRM_API_URL" value="https://demo.retailcrm.ru" />
         <server name="CRM_API_KEY" value="nSBFWecViONG5c96wUQQgZzHkilTnaa6" />
+        <server name="CRM_API_VERSION" value="v5" />
         <server name="CRM_USER_ID" value="1" />
     </php>
 
diff --git a/tests/RetailCrm/Test/TestCase.php b/tests/RetailCrm/Test/TestCase.php
index c623330..a0d4e2b 100644
--- a/tests/RetailCrm/Test/TestCase.php
+++ b/tests/RetailCrm/Test/TestCase.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * PHP version 5.3
+ * PHP version 5.4
  *
  * Test case class
  *
@@ -29,16 +29,22 @@ class TestCase extends \PHPUnit_Framework_TestCase
      *
      * @param  string    $url (default: null)
      * @param  string    $apiKey (default: null)
+     * @param  string    $version (default: null)
      * @param  string    $site (default: null)
      *
      * @return ApiClient
      */
-    public static function getApiClient($url = null, $apiKey = null, $site = null)
+    public static function getApiClient($url = null, $apiKey = null, $version = null, $site = null)
     {
+        $configUrl     = getenv('CRM_API_URL') ?: $_SERVER['CRM_API_URL'];
+        $configKey     = getenv('CRM_API_KEY') ?: $_SERVER['CRM_API_KEY'];
+        $configVersion = getenv('CRM_API_VERSION') ?: $_SERVER['CRM_API_VERSION'];
+
         return new ApiClient(
-            $url ?: $_SERVER['CRM_URL'],
-            $apiKey ?: $_SERVER['CRM_API_KEY'],
-            $site ?: (isset($_SERVER['CRM_SITE']) ? $_SERVER['CRM_SITE'] : null)
+            $url ?: $configUrl,
+            $apiKey ?: $configKey,
+            $version ?: $configVersion,
+            $site ?: null
         );
     }
 
@@ -50,15 +56,21 @@ class TestCase extends \PHPUnit_Framework_TestCase
      *
      * @return Client
      */
-    public static function getClient($url = null, $defaultParameters = array())
+    public static function getClient($url = null, $defaultParameters = [])
     {
+        $version = getenv('CRM_API_VERSION');
+
+        if (false == $version) {
+            $version = $_SERVER['CRM_API_VERSION'];
+        }
+
         return new Client(
-            $url ?: $_SERVER['CRM_URL'] . '/api/' . ApiClient::VERSION,
-            array(
+            $url ?: $_SERVER['CRM_API_URL'] . '/api/' .  $version,
+            [
                 'apiKey' => array_key_exists('apiKey', $defaultParameters)
                     ? $defaultParameters['apiKey']
                     : $_SERVER['CRM_API_KEY']
-            )
+            ]
         );
     }
 }
diff --git a/tests/RetailCrm/Tests/ApiClientTest.php b/tests/RetailCrm/Tests/ApiClientTest.php
index 1bc5d6e..ec39d1d 100644
--- a/tests/RetailCrm/Tests/ApiClientTest.php
+++ b/tests/RetailCrm/Tests/ApiClientTest.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * PHP version 5.3
+ * PHP version 5.4
  *
  * API client test class
  *
@@ -28,7 +28,7 @@ use RetailCrm\Test\TestCase;
 class ApiClientTest extends TestCase
 {
     /**
-     * @group unit
+     * @group client
      */
     public function testConstruct()
     {
diff --git a/tests/RetailCrm/Tests/Http/ClientTest.php b/tests/RetailCrm/Tests/Http/ClientTest.php
index 28f4d10..04cba9c 100644
--- a/tests/RetailCrm/Tests/Http/ClientTest.php
+++ b/tests/RetailCrm/Tests/Http/ClientTest.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * PHP version 5.3
+ * PHP version 5.4
  *
  * API client test class
  *
@@ -30,27 +30,27 @@ use RetailCrm\Http\Client;
 class ClientTest extends TestCase
 {
     /**
-     * @group unit
+     * @group client
      */
     public function testConstruct()
     {
-        $client = new Client('https://asdf.df', array());
+        $client = new Client('https://asdf.df', []);
 
         static::assertInstanceOf('RetailCrm\Http\Client', $client);
     }
 
     /**
-     * @group unit
+     * @group client
      * @expectedException \InvalidArgumentException
      */
     public function testHttpRequiring()
     {
-        $client = new Client('http://demo.retailcrm.ru/api/' . ApiClient::VERSION, array('apiKey' => '123'));
+        $client = new Client('http://demo.retailcrm.ru/api/' . $_SERVER['CRM_API_VERSION'], ['apiKey' => '123']);
         return $client;
     }
 
     /**
-     * @group unit
+     * @group client
      * @expectedException \InvalidArgumentException
      */
     public function testRequestWrongMethod()
@@ -60,17 +60,17 @@ class ClientTest extends TestCase
     }
 
     /**
-     * @group integration
+     * @group client
      * @expectedException \RetailCrm\Exception\CurlException
      */
     public function testRequestWrongUrl()
     {
-        $client = new Client('https://asdf.df', array());
-        $client->makeRequest('/a', Client::METHOD_GET, array());
+        $client = new Client('https://asdf.df', []);
+        $client->makeRequest('/a', Client::METHOD_GET, []);
     }
 
     /**
-     * @group integration
+     * @group client
      */
     public function testRequestSuccess()
     {
diff --git a/tests/RetailCrm/Tests/Methods/Version4/ApiClientCustomersTest.php b/tests/RetailCrm/Tests/Methods/Version4/ApiClientCustomersTest.php
new file mode 100644
index 0000000..232ee98
--- /dev/null
+++ b/tests/RetailCrm/Tests/Methods/Version4/ApiClientCustomersTest.php
@@ -0,0 +1,286 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client customers test class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Tests\Methods\Version4;
+
+use RetailCrm\Test\TestCase;
+
+/**
+ * Class ApiClientCustomersTest
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+class ApiClientCustomersTest extends TestCase
+{
+    const FIRST_NAME = 'Иннокентий';
+
+    /**
+     * @group customers_v4
+     */
+    public function testCustomersCreate()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $externalId = 'c-create-' . time();
+
+        $response = $client->request->customersCreate([
+            'firstName' => self::FIRST_NAME,
+            'externalId' => $externalId,
+        ]);
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(201, $response->getStatusCode());
+        static::assertTrue(is_int($response['id']));
+
+        return [
+            'id' => $response['id'],
+            'externalId' => $externalId,
+        ];
+    }
+
+    /**
+     * @group customers_v4
+     * @expectedException \InvalidArgumentException
+     */
+    public function testCreateExceptionEmpty()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+        $client->request->customersCreate([]);
+    }
+
+    /**
+     * @group   customers
+     * @depends testCustomersCreate
+     *
+     * @param array $ids
+     *
+     * @return array
+     */
+    public function testCustomersGet(array $ids)
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $response = $client->request->customersGet(678678678);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(404, $response->getStatusCode());
+        static::assertFalse($response->isSuccessful());
+
+        $response = $client->request->customersGet($ids['id'], 'id');
+        $customerById = $response['customer'];
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+        static::assertEquals(self::FIRST_NAME, $response['customer']['firstName']);
+
+        $response = $client->request->customersGet($ids['externalId'], 'externalId');
+        static::assertEquals($customerById['id'], $response['customer']['id']);
+
+        return $ids;
+    }
+
+    /**
+     * @group customers_v4
+     * @expectedException \InvalidArgumentException
+     */
+    public function testCustomersGetException()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+        $client->request->customersGet(678678678, 'asdf');
+    }
+
+    /**
+     * @group   customers
+     * @depends testCustomersGet
+     *
+     * @param array $ids
+     */
+    public function testCustomersEdit(array $ids)
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $response = $client->request->customersEdit(
+            [
+                'id' => 22342134,
+                'lastName' => '12345',
+            ],
+            'id'
+        );
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(404, $response->getStatusCode());
+
+        $response = $client->request->customersEdit([
+            'externalId' => $ids['externalId'],
+            'lastName' => '12345',
+        ]);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * @group customers_v4
+     * @expectedException \InvalidArgumentException
+     */
+    public function testCustomersEditExceptionEmpty()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+        $client->request->customersEdit([], 'asdf');
+    }
+
+    /**
+     * @group customers_v4
+     * @expectedException \InvalidArgumentException
+     */
+    public function testCustomersEditException()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+        $client->request->customersEdit(['id' => 678678678], 'asdf');
+    }
+
+    /**
+     * @group customers_v4
+     */
+    public function testCustomersList()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $response = $client->request->customersList();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue($response->isSuccessful());
+        static::assertTrue(isset($response['customers']));
+
+        $response = $client->request->customersList([], 1, 300);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertFalse(
+            $response->isSuccessful(),
+            'Pagination error'
+        );
+
+        $response = $client->request->customersList(['maxOrdersCount' => 10], 1);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue(
+            $response->isSuccessful(),
+            'API returns customers list'
+        );
+    }
+
+    /**
+     * @group customers_v4
+     * @expectedException \InvalidArgumentException
+     */
+    public function testCustomersFixExternalIdsException()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+        $client->request->customersFixExternalIds([]);
+    }
+
+    /**
+     * @group customers_v4
+     */
+    public function testCustomersFixExternalIds()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $response = $client->request->ordersCreate([
+            'firstName' => 'Aaa111',
+        ]);
+
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Order created'
+        );
+
+        $response = $client->request->ordersGet($response['id'], 'id');
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Order fetched'
+        );
+
+        $id = $response['order']['customer']['id'];
+        $externalId = 'asdf' . time();
+
+        $response = $client->request->customersFixExternalIds([
+            ['id' => $id, 'externalId' => $externalId]
+        ]);
+
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Fixed customer ids'
+        );
+
+        $response = $client->request->customersGet($externalId);
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Got customer'
+        );
+        static::assertEquals(
+            $id,
+            $response['customer']['id'],
+            'Fixing of customer ids were right'
+        );
+        static::assertEquals(
+            $externalId,
+            $response['customer']['externalId'],
+            'Fixing of customer ids were right'
+        );
+    }
+
+    /**
+     * @group customers_v4
+     * @expectedException \InvalidArgumentException
+     */
+    public function testCustomersUploadExceptionEmpty()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+        $client->request->customersUpload([]);
+    }
+
+    /**
+     * @group customers_v4
+     */
+    public function testCustomersUpload()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $externalIdA = 'upload-a-' . time();
+        $externalIdB = 'upload-b-' . time();
+
+        $response = $client->request->customersUpload([
+            [
+                'externalId' => $externalIdA,
+                'firstName' => 'Aaa',
+            ],
+            [
+                'externalId' => $externalIdB,
+                'lastName' => 'Bbb',
+            ],
+        ]);
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Got customer'
+        );
+        static::assertEquals(
+            $externalIdA,
+            $response['uploadedCustomers'][0]['externalId']
+        );
+        static::assertEquals(
+            $externalIdB,
+            $response['uploadedCustomers'][1]['externalId']
+        );
+    }
+}
diff --git a/tests/RetailCrm/Tests/Methods/Version4/ApiClientMarketplaceTest.php b/tests/RetailCrm/Tests/Methods/Version4/ApiClientMarketplaceTest.php
new file mode 100644
index 0000000..89e09e4
--- /dev/null
+++ b/tests/RetailCrm/Tests/Methods/Version4/ApiClientMarketplaceTest.php
@@ -0,0 +1,49 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client marketplace test class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Tests\Methods\Version4;
+
+use RetailCrm\Test\TestCase;
+
+/**
+ * Class ApiClientMarketplaceTest
+ *
+ * @package RetailCrm\Tests
+ */
+class ApiClientMarketplaceTest extends TestCase
+{
+    const SNAME = 'Marketplace integration v4';
+    const SCODE = 'integration_v4';
+
+    /**
+     * @group marketplace_v4
+     */
+    public function testConfigurationEdit()
+    {
+        $client = static::getApiClient(null, null, "v4");
+
+        $response = $client->request->marketplaceSettingsEdit(
+            [
+                'name' => self::SNAME,
+                'code' => self::SCODE,
+                'logo' => 'http://download.retailcrm.pro/logos/setup.svg',
+                'active' => 'true'
+            ]
+        );
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue(in_array($response->getStatusCode(), [200, 201]));
+        static::assertTrue($response->isSuccessful());
+    }
+}
diff --git a/tests/RetailCrm/Tests/Methods/Version4/ApiClientOrdersTest.php b/tests/RetailCrm/Tests/Methods/Version4/ApiClientOrdersTest.php
new file mode 100644
index 0000000..974a555
--- /dev/null
+++ b/tests/RetailCrm/Tests/Methods/Version4/ApiClientOrdersTest.php
@@ -0,0 +1,332 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client orders test class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Tests\Methods\Version4;
+
+use RetailCrm\Test\TestCase;
+
+/**
+ * Class ApiClientOrdersTest
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+class ApiClientOrdersTest extends TestCase
+{
+    const FIRST_NAME = 'Иннокентий';
+
+    /**
+     * @group orders_v4
+     */
+    public function testOrdersCreate()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $externalId = 'o-create-' . time();
+
+        $response = $client->request->ordersCreate([
+            'firstName' => self::FIRST_NAME,
+            'externalId' => $externalId,
+        ]);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(201, $response->getStatusCode());
+        static::assertTrue(is_int($response['id']));
+
+        return [
+            'id' => $response['id'],
+            'externalId' => $externalId,
+        ];
+    }
+
+    /**
+     * @group orders_v4
+     * @expectedException \InvalidArgumentException
+     */
+    public function testOrdersCreateExceptionEmpty()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+        $client->request->ordersCreate([]);
+    }
+
+    /**
+     * @group   orders
+     * @depends testOrdersCreate
+     *
+     * @param array $ids
+     */
+    public function testOrdersStatuses(array $ids)
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $response = $client->request->ordersStatuses();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(400, $response->getStatusCode());
+        static::assertFalse($response->isSuccessful());
+
+        $response = $client->request->ordersStatuses([], ['asdf']);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+        $orders = $response['orders'];
+        static::assertEquals(0, sizeof($orders));
+
+        $response = $client->request->ordersStatuses([], [$ids['externalId']]);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+        $orders = $response['orders'];
+        static::assertEquals(1, sizeof($orders));
+        static::assertEquals('new', $orders[0]['status']);
+
+        $response = $client->request->ordersStatuses([$ids['id']], [$ids['externalId']]);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+        $orders = $response['orders'];
+        static::assertEquals(1, sizeof($orders));
+
+        $response = $client->request->ordersStatuses([$ids['id']]);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+        $orders = $response['orders'];
+        static::assertEquals(1, sizeof($orders));
+    }
+
+    /**
+     * @group   orders
+     * @depends testOrdersCreate
+     *
+     * @param array $ids
+     *
+     * @return array
+     */
+    public function testOrdersGet(array $ids)
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $response = $client->request->ordersGet(678678678);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(404, $response->getStatusCode());
+        static::assertFalse($response->isSuccessful());
+
+        $response = $client->request->ordersGet($ids['id'], 'id');
+        $orderById = $response['order'];
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+        static::assertEquals(self::FIRST_NAME, $response['order']['firstName']);
+
+        $response = $client->request->ordersGet($ids['externalId'], 'externalId');
+        static::assertEquals($orderById['id'], $response['order']['id']);
+
+        return $ids;
+    }
+
+    /**
+     * @group orders_v4
+     * @expectedException \InvalidArgumentException
+     */
+    public function testOrdersGetException()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+        $client->request->ordersGet(678678678, 'asdf');
+    }
+
+    /**
+     * @group   orders
+     * @depends testOrdersGet
+     *
+     * @param array $ids
+     */
+    public function testOrdersEdit(array $ids)
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $response = $client->request->ordersEdit(
+            [
+                'id' => 22342134,
+                'lastName' => '12345',
+            ],
+            'id'
+        );
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(404, $response->getStatusCode());
+
+        $response = $client->request->ordersEdit([
+            'externalId' => $ids['externalId'],
+            'lastName' => '12345',
+        ]);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * @group orders_v4
+     * @expectedException \InvalidArgumentException
+     */
+    public function testOrdersEditExceptionEmpty()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+        $client->request->ordersEdit([], 'asdf');
+    }
+
+    /**
+     * @group orders_v4
+     * @expectedException \InvalidArgumentException
+     */
+    public function testOrdersEditException()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+        $client->request->ordersEdit(['id' => 678678678], 'asdf');
+    }
+
+    /**
+     * @group orders_v4
+     */
+    public function testOrdersHistory()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $response = $client->request->ordersHistory();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * @group orders_v4
+     */
+    public function testOrdersList()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $response = $client->request->ordersList();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue($response->isSuccessful());
+        static::assertTrue(isset($response['orders']));
+
+        $response = $client->request->ordersList([], 1, 300);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertFalse(
+            $response->isSuccessful(),
+            'Pagination error'
+        );
+
+        $response = $client->request->ordersList(['paymentStatus' => 'paid'], 1);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+    }
+
+    /**
+     * @group orders_v4
+     * @expectedException \InvalidArgumentException
+     */
+    public function testOrdersFixExternalIdsException()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+        $client->request->ordersFixExternalIds([]);
+    }
+
+    /**
+     * @group orders_v4
+     */
+    public function testOrdersFixExternalIds()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $response = $client->request->ordersCreate([
+            'firstName' => 'Aaa',
+        ]);
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Order created'
+        );
+
+        $id = $response['id'];
+        $externalId = 'asdf' . time();
+
+        $response = $client->request->ordersFixExternalIds([
+            ['id' => $id, 'externalId' => $externalId]
+        ]);
+
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Fixed order ids'
+        );
+
+        $response = $client->request->ordersGet($externalId);
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Got order'
+        );
+        static::assertEquals(
+            $id,
+            $response['order']['id'],
+            'Fixing of order ids were right'
+        );
+        static::assertEquals(
+            $externalId,
+            $response['order']['externalId'],
+            'Fixing of order ids were right'
+        );
+    }
+
+    /**
+     * @group orders_v4
+     * @expectedException \InvalidArgumentException
+     */
+    public function testOrdersUploadExceptionEmpty()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+        $client->request->ordersUpload([]);
+    }
+
+    /**
+     * @group orders_v4
+     */
+    public function testOrdersUpload()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $externalIdA = 'upload-a-' . time();
+        $externalIdB = 'upload-b-' . time();
+
+        $response = $client->request->ordersUpload([
+            [
+                'externalId' => $externalIdA,
+                'firstName' => 'Aaa',
+            ],
+            [
+                'externalId' => $externalIdB,
+                'lastName' => 'Bbb',
+            ],
+        ]);
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Got order'
+        );
+        static::assertEquals(
+            $externalIdA,
+            $response['uploadedOrders'][0]['externalId']
+        );
+        static::assertEquals(
+            $externalIdB,
+            $response['uploadedOrders'][1]['externalId']
+        );
+    }
+}
diff --git a/tests/RetailCrm/Tests/Methods/Version4/ApiClientPacksTest.php b/tests/RetailCrm/Tests/Methods/Version4/ApiClientPacksTest.php
new file mode 100644
index 0000000..be2497f
--- /dev/null
+++ b/tests/RetailCrm/Tests/Methods/Version4/ApiClientPacksTest.php
@@ -0,0 +1,68 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client packs test class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Tests\Methods\Version4;
+
+use RetailCrm\Test\TestCase;
+
+/**
+ * Class ApiClientPacksTest
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+class ApiClientPacksTest extends TestCase
+{
+    /**
+     * @group packs_v4
+     */
+    public function testPacksHistory()
+    {
+        $client = static::getApiClient(null, null, "v4");
+
+        $response = $client->request->ordersPacksHistory();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->success);
+        static::assertTrue(
+            isset($response['history']),
+            'API returns orders assembly history'
+        );
+        static::assertTrue(
+            isset($response['generatedAt']),
+            'API returns generatedAt in orders assembly history'
+        );
+    }
+
+    /**
+     * @group packs_v4
+     */
+    public function testPacksCreateFailed()
+    {
+        $client = static::getApiClient(null, null, "v4");
+        $pack = [
+            'itemId' => 12,
+            'store' => 'test',
+            'quantity' => 2
+        ];
+
+        $response = $client->request->ordersPacksCreate($pack);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(400, $response->getStatusCode());
+        static::assertFalse($response->success);
+    }
+}
diff --git a/tests/RetailCrm/Tests/Methods/Version4/ApiClientPricesTest.php b/tests/RetailCrm/Tests/Methods/Version4/ApiClientPricesTest.php
new file mode 100644
index 0000000..d59b4e4
--- /dev/null
+++ b/tests/RetailCrm/Tests/Methods/Version4/ApiClientPricesTest.php
@@ -0,0 +1,114 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client prices test class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Tests\Methods\Version4;
+
+use RetailCrm\Test\TestCase;
+
+/**
+ * Class ApiClientPricesTest
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+class ApiClientPricesTest extends TestCase
+{
+
+    /**
+     * @group prices_v4
+     */
+    public function testPricesEdit()
+    {
+
+        $client = static::getApiClient(null, null, "v4");
+
+        $response = $client->request->pricesTypesEdit(
+            [
+                'code' => 'sample_v4_price_code',
+                'name' => 'Sample v4 price type',
+                'ordering' => 500,
+                'active' => true
+            ]
+        );
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue(in_array($response->getStatusCode(), [200, 201]));
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * @depends testPricesEdit
+     * @group prices_v4
+     */
+    public function testPricesGet()
+    {
+        $client = static::getApiClient(null, null, "v4");
+
+        $response = $client->request->pricesTypes();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+    }
+
+
+
+    /**
+     * @group prices_v4
+     * @expectedException \InvalidArgumentException
+     */
+    public function testPricesUploadExceptionEmpty()
+    {
+        $client = static::getApiClient(null, null, "v4");
+        $client->request->storePricesUpload([]);
+    }
+
+    /**
+     * @depends testPricesEdit
+     * @group prices_v4
+     */
+    public function testPricesUpload()
+    {
+        $client = static::getApiClient(null, null, "v4");
+
+        $xmlIdA = 'upload-a-' . time();
+        $xmlIdB = 'upload-b-' . time();
+
+        $response = $client->request->storePricesUpload([
+            [
+                'xmlId' => $xmlIdA,
+                'prices' => [
+                    [
+                        'code' => 'sample_v4_price_code',
+                        'price' => 1700
+                    ]
+                ]
+            ],
+            [
+                'xmlId' => $xmlIdB,
+                'prices' => [
+                    [
+                        'code' => 'sample_v4_price_code',
+                        'price' => 1500
+                    ]
+                ]
+            ],
+        ]);
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+    }
+}
diff --git a/tests/RetailCrm/Tests/Methods/Version4/ApiClientReferenceTest.php b/tests/RetailCrm/Tests/Methods/Version4/ApiClientReferenceTest.php
new file mode 100644
index 0000000..4ac9251
--- /dev/null
+++ b/tests/RetailCrm/Tests/Methods/Version4/ApiClientReferenceTest.php
@@ -0,0 +1,171 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client references test class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Tests\Methods\Version4;
+
+use RetailCrm\Test\TestCase;
+
+/**
+ * Class ApiClientReferenceTest
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+class ApiClientReferenceTest extends TestCase
+{
+    /**
+     * @group reference_v4
+     * @dataProvider getListDictionaries
+     * @param $name
+     */
+    public function testList($name)
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $method = $name . 'List';
+        $response = $client->request->$method();
+
+        /* @var \RetailCrm\Response\ApiResponse $response */
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue($response->isSuccessful());
+        static::assertTrue(isset($response[$name]));
+        static::assertTrue(is_array($response[$name]));
+    }
+
+    /**
+     * @group reference_v4
+     * @dataProvider getEditDictionaries
+     * @expectedException \InvalidArgumentException
+     *
+     * @param $name
+     */
+    public function testEditingException($name)
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $method = $name . 'Edit';
+        $client->request->$method([]);
+    }
+
+    /**
+     * @group reference_v4
+     * @dataProvider getEditDictionaries
+     *
+     * @param $name
+     */
+    public function testEditing($name)
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $code = 'dict-' . strtolower($name) . '-' . time();
+        $method = $name . 'Edit';
+        $params = [
+            'code' => $code,
+            'name' => 'Aaa' . $code,
+            'active' => false
+        ];
+        if ($name == 'statuses') {
+            $params['group'] = 'new';
+        }
+
+        $response = $client->request->$method($params);
+        /* @var \RetailCrm\Response\ApiResponse $response */
+
+        static::assertTrue(in_array($response->getStatusCode(), [200, 201]));
+
+        $response = $client->request->$method([
+            'code' => $code,
+            'name' => 'Bbb' . $code,
+            'active' => false
+        ]);
+
+        static::assertTrue(in_array($response->getStatusCode(), [200, 201]));
+    }
+
+    /**
+     * @group reference_v4
+     * @group site
+     */
+    public function testSiteEditing()
+    {
+        $name = 'sites';
+        $client = static::getApiClient(null, null, 'v4');
+
+        $code = 'dict-' . strtolower($name) . '-' . time();
+        $method = $name . 'Edit';
+        $params = [
+            'code' => $code,
+            'name' => 'Aaa',
+            'active' => false
+        ];
+
+        $response = $client->request->$method($params);
+        /* @var \RetailCrm\Response\ApiResponse $response */
+
+        static::assertEquals(400, $response->getStatusCode());
+
+        if ($code == $client->request->getSite()) {
+            $method = $name . 'Edit';
+            $params = [
+                'code' => $code,
+                'name' => 'Aaa' . time(),
+                'active' => false
+            ];
+
+            $response = $client->request->$method($params);
+            static::assertEquals(200, $response->getStatusCode());
+        }
+    }
+
+    /**
+     * @return array
+     */
+    public function getListDictionaries()
+    {
+        return [
+            ['deliveryServices'],
+            ['deliveryTypes'],
+            ['orderMethods'],
+            ['orderTypes'],
+            ['paymentStatuses'],
+            ['paymentTypes'],
+            ['productStatuses'],
+            ['statusGroups'],
+            ['statuses'],
+            ['sites'],
+            ['stores'],
+        ];
+    }
+
+    /**
+     * @return array
+     */
+    public function getEditDictionaries()
+    {
+        return [
+            ['deliveryServices'],
+            ['deliveryTypes'],
+            ['orderMethods'],
+            ['orderTypes'],
+            ['paymentStatuses'],
+            ['paymentTypes'],
+            ['productStatuses'],
+            ['statuses'],
+        ];
+    }
+}
diff --git a/tests/RetailCrm/Tests/Methods/Version4/ApiClientStoreTest.php b/tests/RetailCrm/Tests/Methods/Version4/ApiClientStoreTest.php
new file mode 100644
index 0000000..4034756
--- /dev/null
+++ b/tests/RetailCrm/Tests/Methods/Version4/ApiClientStoreTest.php
@@ -0,0 +1,146 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client store test class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Tests\Methods\Version4;
+
+use RetailCrm\Test\TestCase;
+
+/**
+ * Class ApiClientStoreTest
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+class ApiClientStoreTest extends TestCase
+{
+    const SNAME = 'Test Store V4';
+    const SCODE = 'test-store-v4';
+
+    /**
+     * @group store_v4
+     */
+    public function testStoreCreate()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $response = $client->request->storesEdit(['name' => self::SNAME, 'code' => self::SCODE]);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue(in_array($response->getStatusCode(), [200, 201]));
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * @group store_v4
+     */
+    public function testStoreInventories()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $response = $client->request->storeInventories();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+        static::assertTrue(
+            isset($response['offers']),
+            'API returns orders assembly history'
+        );
+    }
+
+    /**
+     * @group store_v4
+     * @expectedException \InvalidArgumentException
+     */
+    public function testInventoriesException()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+        $client->request->storeInventoriesUpload([]);
+    }
+
+    /**
+     * @group store_v4
+     */
+    public function testInventoriesUpload()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $response = $client->request->storeInventoriesUpload([
+            [
+                'externalId' => 'pTKIKAeghYzX21HTdzFCe1',
+                'stores' => [
+                    [
+                        'code' => self::SCODE,
+                        'available' => 10,
+                        'purchasePrice' => 1700
+                    ]
+                ]
+            ],
+            [
+                'externalId' => 'JQIvcrCtiSpOV3AAfMiQB3',
+                'stores' => [
+                    [
+                        'code' => self::SCODE,
+                        'available' => 20,
+                        'purchasePrice' => 1500
+                    ]
+                ]
+            ],
+        ]);
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * @group integration
+     */
+    public function testInventoriesFailed()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $externalIdA = 'upload-a-' . time();
+        $externalIdB = 'upload-b-' . time();
+
+        $response = $client->request->storeInventoriesUpload([
+            [
+                'externalId' => $externalIdA,
+                'available' => 10,
+                'purchasePrice' => 1700
+            ],
+            [
+                'externalId' => $externalIdB,
+                'available' => 20,
+                'purchasePrice' => 1500
+            ],
+        ]);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(400, $response->getStatusCode());
+        static::assertTrue(isset($response['errorMsg']), $response['errorMsg']);
+    }
+
+    /**
+     * @group store_v4
+     */
+    public function testStoreProducts()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $response = $client->request->storeProducts();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+    }
+}
diff --git a/tests/RetailCrm/Tests/Methods/Version4/ApiClientTelephonyTest.php b/tests/RetailCrm/Tests/Methods/Version4/ApiClientTelephonyTest.php
new file mode 100644
index 0000000..eb5d727
--- /dev/null
+++ b/tests/RetailCrm/Tests/Methods/Version4/ApiClientTelephonyTest.php
@@ -0,0 +1,159 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client telephony test class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Tests\Methods\Version4;
+
+use RetailCrm\Test\TestCase;
+
+/**
+ * Class ApiClientTelephonyTest
+ * @category RetailCrm
+ * @package RetailCrm\Tests
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+class ApiClientTelephonyTest extends TestCase
+{
+
+    const TEL_CODE = 'telephony-code-v4';
+    const TEL_CLIENT = '123';
+    const TEL_IMAGE = 'http://www.mec.ph/horizon/wp-content/uploads/2011/11/telephony.svg';
+
+    /**
+     * Settings Edit test
+     *
+     * @group telephony
+     *
+     * @return void
+     */
+    public function testTelephonySettingsEdit()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $response = $client->request->telephonySettingsEdit(
+            self::TEL_CODE,
+            self::TEL_CLIENT,
+            true,
+            'TestTelephonyV4',
+            false,
+            self::TEL_IMAGE,
+            [['userId' => $_SERVER['CRM_USER_ID'], 'code' => '101']],
+            [['siteCode' => 'api-client-php', 'externalPhone' => '+74950000000']]
+        );
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue(in_array($response->getStatusCode(), [200, 201]));
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * Settings Get test
+     *
+     * @group telephony
+     *
+     * @return void
+     */
+    public function testTelephonySettingsGet()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $response = $client->request->telephonySettingsGet(self::TEL_CODE);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * Event test
+     *
+     * @group telephony
+     *
+     * @return void
+     */
+    public function testTelephonyEvent()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $response = $client->request->telephonyCallEvent(
+            '+79999999999',
+            'in',
+            ['101'],
+            'failed',
+            '+74950000000'
+
+        );
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * Upload test
+     *
+     * @group telephony
+     *
+     * @return void
+     */
+    public function testTelephonyUpload()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $response = $client->request->telephonyCallsUpload(
+            [
+                [
+                    'date' => '2016-07-22 00:18:00',
+                    'type' => 'in',
+                    'phone' => '+79999999999',
+                    'code' => '101',
+                    'result' => 'answered',
+                    'externalId' => rand(10, 100),
+                    'recordUrl' => 'http://download.retailcrm.pro/api-client-files/beep1.mp3'
+                ],
+                [
+                    'date' => '2016-07-22 00:24:00',
+                    'type' => 'in',
+                    'phone' => '+79999999999',
+                    'code' => '101',
+                    'result' => 'answered',
+                    'externalId' => rand(10, 100),
+                    'recordUrl' => 'http://download.retailcrm.pro/api-client-files/beep2.mp3'
+                ]
+            ]
+        );
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * Manager test
+     *
+     * @group telephony
+     *
+     * @return void
+     */
+    public function testTelephonyManager()
+    {
+        $client = static::getApiClient(null, null, 'v4');
+
+        $response = $client->request->telephonyCallManager('+79999999999', 1);
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+    }
+}
diff --git a/tests/RetailCrm/Tests/Methods/Version4/ApiClientUsersTest.php b/tests/RetailCrm/Tests/Methods/Version4/ApiClientUsersTest.php
new file mode 100644
index 0000000..c805659
--- /dev/null
+++ b/tests/RetailCrm/Tests/Methods/Version4/ApiClientUsersTest.php
@@ -0,0 +1,68 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client users test class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Tests\Methods\Version4;
+
+use RetailCrm\Test\TestCase;
+
+/**
+ * Class ApiClientUsersTest
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+class ApiClientUsersTest extends TestCase
+{
+    /**
+     * @group users_v4
+     */
+    public function testUsersGroups()
+    {
+        $client = static::getApiClient(null, null, "v4");
+
+        $response = $client->request->usersGroups();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue(in_array($response->getStatusCode(), [200, 201]));
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * @group users_v4
+     */
+    public function testUsersList()
+    {
+        $client = static::getApiClient(null, null, "v4");
+
+        $response = $client->request->usersList();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue(in_array($response->getStatusCode(), [200, 201]));
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * @group users_v4
+     */
+    public function testUsersGet()
+    {
+        $client = static::getApiClient(null, null, "v4");
+
+        $response = $client->request->usersGet($_SERVER["CRM_USER_ID"]);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue(in_array($response->getStatusCode(), [200, 201]));
+        static::assertTrue($response->isSuccessful());
+    }
+}
diff --git a/tests/RetailCrm/Tests/Methods/Version5/ApiClientCustomersTest.php b/tests/RetailCrm/Tests/Methods/Version5/ApiClientCustomersTest.php
new file mode 100644
index 0000000..1a300ac
--- /dev/null
+++ b/tests/RetailCrm/Tests/Methods/Version5/ApiClientCustomersTest.php
@@ -0,0 +1,447 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client customers test class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Tests\Methods\Version5;
+
+use RetailCrm\Test\TestCase;
+
+/**
+ * Class ApiClientCustomersTest
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+class ApiClientCustomersTest extends TestCase
+{
+    const FIRST_NAME = 'Иннокентий';
+
+    /**
+     * @group customers_v5
+     */
+    public function testCustomersCreate()
+    {
+        $client = static::getApiClient();
+
+        $externalId = 'c-create-' . time();
+
+        $response = $client->request->customersCreate([
+            'firstName' => self::FIRST_NAME,
+            'externalId' => $externalId,
+        ]);
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(201, $response->getStatusCode());
+        static::assertTrue(is_int($response['id']));
+
+        return [
+            'id' => $response['id'],
+            'externalId' => $externalId,
+        ];
+    }
+
+    /**
+     * @group customers_v5
+     * @expectedException \InvalidArgumentException
+     */
+    public function testCreateExceptionEmpty()
+    {
+        $client = static::getApiClient();
+        $client->request->customersCreate([]);
+    }
+
+    /**
+     * @group customers_v5
+     * @depends testCustomersCreate
+     *
+     * @param array $ids
+     *
+     * @return array
+     */
+    public function testCustomersGet(array $ids)
+    {
+        $client = static::getApiClient();
+
+        $response = $client->request->customersGet(678678678);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(404, $response->getStatusCode());
+        static::assertFalse($response->isSuccessful());
+
+        $response = $client->request->customersGet($ids['id'], 'id');
+        $customerById = $response['customer'];
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+        static::assertEquals(self::FIRST_NAME, $response['customer']['firstName']);
+
+        $response = $client->request->customersGet($ids['externalId'], 'externalId');
+        static::assertEquals($customerById['id'], $response['customer']['id']);
+
+        return $ids;
+    }
+
+    /**
+     * @group customers_v5
+     * @expectedException \InvalidArgumentException
+     */
+    public function testCustomersGetException()
+    {
+        $client = static::getApiClient();
+        $client->request->customersGet(678678678, 'asdf');
+    }
+
+    /**
+     * @group customers_v5
+     * @depends testCustomersGet
+     *
+     * @param array $ids
+     */
+    public function testCustomersEdit(array $ids)
+    {
+        $client = static::getApiClient();
+
+        $response = $client->request->customersEdit(
+            [
+                'id' => 22342134,
+                'lastName' => '12345',
+            ],
+            'id'
+        );
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(404, $response->getStatusCode());
+
+        $response = $client->request->customersEdit([
+            'externalId' => $ids['externalId'],
+            'lastName' => '12345',
+        ]);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * @group customers_v5
+     * @expectedException \InvalidArgumentException
+     */
+    public function testCustomersEditExceptionEmpty()
+    {
+        $client = static::getApiClient();
+        $client->request->customersEdit([], 'asdf');
+    }
+
+    /**
+     * @group customers_v5
+     * @expectedException \InvalidArgumentException
+     */
+    public function testCustomersEditException()
+    {
+        $client = static::getApiClient();
+        $client->request->customersEdit(['id' => 678678678], 'asdf');
+    }
+
+    /**
+     * @group customers_v5
+     */
+    public function testCustomersList()
+    {
+        $client = static::getApiClient();
+
+        $response = $client->request->customersList();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue($response->isSuccessful());
+        static::assertTrue(isset($response['customers']));
+
+        $response = $client->request->customersList([], 1, 300);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertFalse(
+            $response->isSuccessful(),
+            'Pagination error'
+        );
+
+        $response = $client->request->customersList(['maxOrdersCount' => 10], 1);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue(
+            $response->isSuccessful(),
+            'API returns customers list'
+        );
+    }
+
+    /**
+     * @group customers_v5
+     * @expectedException \InvalidArgumentException
+     */
+    public function testCustomersFixExternalIdsException()
+    {
+        $client = static::getApiClient();
+        $client->request->customersFixExternalIds([]);
+    }
+
+    /**
+     * @group customers_v5
+     */
+    public function testCustomersFixExternalIds()
+    {
+        $client = static::getApiClient();
+
+        $response = $client->request->ordersCreate([
+            'firstName' => 'Aaa111',
+        ]);
+
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Order created'
+        );
+
+        $response = $client->request->ordersGet($response['id'], 'id');
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Order fetched'
+        );
+
+        $id = $response['order']['customer']['id'];
+        $externalId = 'asdf' . time();
+
+        $response = $client->request->customersFixExternalIds([
+            ['id' => $id, 'externalId' => $externalId]
+        ]);
+
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Fixed customer ids'
+        );
+
+        $response = $client->request->customersGet($externalId);
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Got customer'
+        );
+        static::assertEquals(
+            $id,
+            $response['customer']['id'],
+            'Fixing of customer ids were right'
+        );
+        static::assertEquals(
+            $externalId,
+            $response['customer']['externalId'],
+            'Fixing of customer ids were right'
+        );
+    }
+
+    /**
+     * @group customers_v5
+     * @expectedException \InvalidArgumentException
+     */
+    public function testCustomersUploadExceptionEmpty()
+    {
+        $client = static::getApiClient();
+        $client->request->customersUpload([]);
+    }
+
+    /**
+     * @group customers_v5
+     */
+    public function testCustomersUpload()
+    {
+        $client = static::getApiClient();
+
+        $externalIdA = 'upload-a-' . time();
+        $externalIdB = 'upload-b-' . time();
+
+        $response = $client->request->customersUpload([
+            [
+                'externalId' => $externalIdA,
+                'firstName' => 'Aaa',
+            ],
+            [
+                'externalId' => $externalIdB,
+                'lastName' => 'Bbb',
+            ],
+        ]);
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Got customer'
+        );
+        static::assertEquals(
+            $externalIdA,
+            $response['uploadedCustomers'][0]['externalId']
+        );
+        static::assertEquals(
+            $externalIdB,
+            $response['uploadedCustomers'][1]['externalId']
+        );
+    }
+
+    /**
+     * @group customers_v5
+     */
+    public function testCustomersCombine()
+    {
+        $client = static::getApiClient();
+
+        $responseCreateFirst = $client->request->customersCreate([
+            'firstName' => 'Aaa111',
+            'externalId' => 'AA-' . time(),
+            'phones' => [
+                [
+                    'number' => '+79999999990'
+                ]
+            ]
+        ]);
+
+        static::assertTrue(
+            $responseCreateFirst->isSuccessful(),
+            'Got customer'
+        );
+
+        $responseCreateSecond = $client->request->customersCreate([
+            'firstName' => 'Aaa222',
+            'externalId' => 'BB-' . time(),
+            'phones' => [
+                [
+                    'number' => '+79999999991'
+                ]
+            ]
+        ]);
+
+        static::assertTrue(
+            $responseCreateSecond->isSuccessful(),
+            'Got customer'
+        );
+
+        $customers = [
+            ['id' => $responseCreateFirst['id']]
+        ];
+
+        $resultCustomer = ['id' => $responseCreateSecond['id']];
+
+        $response = $client->request->customersCombine($customers, $resultCustomer);
+
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Customers combined'
+        );
+    }
+
+    /**
+     * @group customers_v5
+     */
+    public function testCustomersNotesCreate()
+    {
+        $client = static::getApiClient();
+
+        $responseCreateFirst = $client->request->customersCreate([
+            'firstName' => 'Some',
+            'lastName' => 'Test',
+            'externalId' => 'AA-' . time(),
+            'phones' => [
+                [
+                    'number' => '+79999999990'
+                ]
+            ]
+        ]);
+
+        static::assertTrue(
+            $responseCreateFirst->isSuccessful(),
+            'Got customer'
+        );
+
+        $note = [
+            'managerId' => 6,
+            'text' => 'test note',
+            'createdAt' => date('Y-m-d H:i:s'),
+            'customer' => [
+                'id' => $responseCreateFirst['id']
+            ]
+        ];
+
+        $response = $client->request->customersNotesCreate($note);
+
+        static::assertTrue($response->isSuccessful(), 'Note created');
+        static::assertEquals(201, $response->getStatusCode());
+    }
+
+    /**
+     * @group customers_v5
+     */
+    public function testCustomersNotesList()
+    {
+        $client = static::getApiClient();
+
+        $responseCreateFirst = $client->request->customersCreate([
+            'firstName' => 'Some',
+            'lastName' => 'Test',
+            'externalId' => 'AA-' . time(),
+            'phones' => [
+                [
+                    'number' => '+79999999990'
+                ]
+            ]
+        ]);
+
+        static::assertTrue(
+            $responseCreateFirst->isSuccessful(),
+            'Got customer'
+        );
+
+        $response = $client->request->customersNotesList(['customerIds' => [$responseCreateFirst['id']]]);
+
+        static::assertTrue($response->isSuccessful(), 'Got notes list');
+        static::assertEquals(200, $response->getStatusCode());
+    }
+
+    /**
+     * @group customers_v5
+     */
+    public function testCustomersNotesDelete()
+    {
+        $client = static::getApiClient();
+
+        $responseCreateFirst = $client->request->customersCreate([
+            'firstName' => 'Some',
+            'lastName' => 'Test',
+            'externalId' => 'AA-' . time(),
+            'phones' => [
+                [
+                    'number' => '+79999999990'
+                ]
+            ]
+        ]);
+
+        static::assertTrue(
+            $responseCreateFirst->isSuccessful(),
+            'Got customer'
+        );
+
+        $note = [
+            'managerId' => 6,
+            'text' => 'test note',
+            'createdAt' => date('Y-m-d H:i:s'),
+            'customer' => [
+                'id' => $responseCreateFirst['id']
+            ]
+        ];
+
+        $response = $client->request->customersNotesCreate($note);
+
+        static::assertTrue($response->isSuccessful(), 'Note created');
+        static::assertEquals(201, $response->getStatusCode());
+
+        $responseDelete =  $client->request->customersNotesDelete($response['id']);
+
+        static::assertTrue($responseDelete->isSuccessful(), 'Note deleted');
+        static::assertEquals(200, $responseDelete->getStatusCode());
+    }
+}
diff --git a/tests/RetailCrm/Tests/Methods/Version5/ApiClientMarketplaceTest.php b/tests/RetailCrm/Tests/Methods/Version5/ApiClientMarketplaceTest.php
new file mode 100644
index 0000000..5eb176f
--- /dev/null
+++ b/tests/RetailCrm/Tests/Methods/Version5/ApiClientMarketplaceTest.php
@@ -0,0 +1,49 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client marketplace test class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Tests\Methods\Version5;
+
+use RetailCrm\Test\TestCase;
+
+/**
+ * Class ApiClientMarketplaceTest
+ *
+ * @package RetailCrm\Tests
+ */
+class ApiClientMarketplaceTest extends TestCase
+{
+    const SNAME = 'Marketplace integration v5';
+    const SCODE = 'integration_v5';
+
+    /**
+     * @group marketplace_v5
+     */
+    public function testConfigurationEdit()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->marketplaceSettingsEdit(
+            [
+                'name' => self::SNAME,
+                'code' => self::SCODE,
+                'logo' => 'http://download.retailcrm.pro/logos/setup.svg',
+                'active' => 'true'
+            ]
+        );
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue(in_array($response->getStatusCode(), [200, 201]));
+        static::assertTrue($response->isSuccessful());
+    }
+}
diff --git a/tests/RetailCrm/Tests/Methods/Version5/ApiClientOrdersTest.php b/tests/RetailCrm/Tests/Methods/Version5/ApiClientOrdersTest.php
new file mode 100644
index 0000000..f59f565
--- /dev/null
+++ b/tests/RetailCrm/Tests/Methods/Version5/ApiClientOrdersTest.php
@@ -0,0 +1,420 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client orders test class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Tests\Methods\Version5;
+
+use RetailCrm\Test\TestCase;
+
+/**
+ * Class ApiClientOrdersTest
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+class ApiClientOrdersTest extends TestCase
+{
+    const FIRST_NAME = 'Иннокентий';
+
+    /**
+     * @group orders_v5
+     */
+    public function testOrdersCreate()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $externalId = 'o-create-' . time();
+
+        $response = $client->request->ordersCreate([
+            'firstName' => self::FIRST_NAME,
+            'externalId' => $externalId,
+        ]);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(201, $response->getStatusCode());
+        static::assertTrue(is_int($response['id']));
+
+        return [
+            'id' => $response['id'],
+            'externalId' => $externalId,
+        ];
+    }
+
+    /**
+     * @group orders_v5
+     * @expectedException \InvalidArgumentException
+     */
+    public function testOrdersCreateExceptionEmpty()
+    {
+        $client = static::getApiClient(null, null, "v5");
+        $client->request->ordersCreate([]);
+    }
+
+    /**
+     * @group   orders
+     * @depends testOrdersCreate
+     *
+     * @param array $ids
+     */
+    public function testOrdersStatuses(array $ids)
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->ordersStatuses();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(400, $response->getStatusCode());
+        static::assertFalse($response->isSuccessful());
+
+        $response = $client->request->ordersStatuses([], ['asdf']);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+        $orders = $response['orders'];
+        static::assertEquals(0, sizeof($orders));
+
+        $response = $client->request->ordersStatuses([], [$ids['externalId']]);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+        $orders = $response['orders'];
+        static::assertEquals(1, sizeof($orders));
+        static::assertEquals('new', $orders[0]['status']);
+
+        $response = $client->request->ordersStatuses([$ids['id']], [$ids['externalId']]);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+        $orders = $response['orders'];
+        static::assertEquals(1, sizeof($orders));
+
+        $response = $client->request->ordersStatuses([$ids['id']]);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+        $orders = $response['orders'];
+        static::assertEquals(1, sizeof($orders));
+    }
+
+    /**
+     * @group   orders
+     * @depends testOrdersCreate
+     *
+     * @param array $ids
+     *
+     * @return array
+     */
+    public function testOrdersGet(array $ids)
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->ordersGet(678678678);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(404, $response->getStatusCode());
+        static::assertFalse($response->isSuccessful());
+
+        $response = $client->request->ordersGet($ids['id'], 'id');
+        $orderById = $response['order'];
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+        static::assertEquals(self::FIRST_NAME, $response['order']['firstName']);
+
+        $response = $client->request->ordersGet($ids['externalId'], 'externalId');
+        static::assertEquals($orderById['id'], $response['order']['id']);
+
+        return $ids;
+    }
+
+    /**
+     * @group orders_v5
+     * @expectedException \InvalidArgumentException
+     */
+    public function testOrdersGetException()
+    {
+        $client = static::getApiClient(null, null, "v5");
+        $client->request->ordersGet(678678678, 'asdf');
+    }
+
+    /**
+     * @group   orders
+     * @depends testOrdersGet
+     *
+     * @param array $ids
+     */
+    public function testOrdersEdit(array $ids)
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->ordersEdit(
+            [
+                'id' => 22342134,
+                'lastName' => '12345',
+            ],
+            'id'
+        );
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(404, $response->getStatusCode());
+
+        $response = $client->request->ordersEdit([
+            'externalId' => $ids['externalId'],
+            'lastName' => '12345',
+        ]);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * @group orders_v5
+     * @expectedException \InvalidArgumentException
+     */
+    public function testOrdersEditExceptionEmpty()
+    {
+        $client = static::getApiClient(null, null, "v5");
+        $client->request->ordersEdit([], 'asdf');
+    }
+
+    /**
+     * @group orders_v5
+     * @expectedException \InvalidArgumentException
+     */
+    public function testOrdersEditException()
+    {
+        $client = static::getApiClient(null, null, "v5");
+        $client->request->ordersEdit(['id' => 678678678], 'asdf');
+    }
+
+    /**
+     * @group orders_v5
+     */
+    public function testOrdersHistory()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->ordersHistory();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * @group orders_v5
+     */
+    public function testOrdersList()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->ordersList();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue($response->isSuccessful());
+        static::assertTrue(isset($response['orders']));
+
+        $response = $client->request->ordersList([], 1, 300);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertFalse(
+            $response->isSuccessful(),
+            'Pagination error'
+        );
+
+        $response = $client->request->ordersList(['paymentStatus' => 'paid'], 1);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+    }
+
+    /**
+     * @group orders_v5
+     * @expectedException \InvalidArgumentException
+     */
+    public function testOrdersFixExternalIdsException()
+    {
+        $client = static::getApiClient(null, null, "v5");
+        $client->request->ordersFixExternalIds([]);
+    }
+
+    /**
+     * @group orders_v5
+     */
+    public function testOrdersFixExternalIds()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->ordersCreate([
+            'firstName' => 'Aaa',
+        ]);
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Order created'
+        );
+
+        $id = $response['id'];
+        $externalId = 'asdf' . time();
+
+        $response = $client->request->ordersFixExternalIds([
+            ['id' => $id, 'externalId' => $externalId]
+        ]);
+
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Fixed order ids'
+        );
+
+        $response = $client->request->ordersGet($externalId);
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Got order'
+        );
+        static::assertEquals(
+            $id,
+            $response['order']['id'],
+            'Fixing of order ids were right'
+        );
+        static::assertEquals(
+            $externalId,
+            $response['order']['externalId'],
+            'Fixing of order ids were right'
+        );
+    }
+
+    /**
+     * @group orders_v5
+     * @expectedException \InvalidArgumentException
+     */
+    public function testOrdersUploadExceptionEmpty()
+    {
+        $client = static::getApiClient(null, null, "v5");
+        $client->request->ordersUpload([]);
+    }
+
+    /**
+     * @group orders_v5
+     */
+    public function testOrdersUpload()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $externalIdA = 'upload-a-' . time();
+        $externalIdB = 'upload-b-' . time();
+
+        $response = $client->request->ordersUpload([
+            [
+                'externalId' => $externalIdA,
+                'firstName' => 'Aaa',
+            ],
+            [
+                'externalId' => $externalIdB,
+                'lastName' => 'Bbb',
+            ],
+        ]);
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Got order'
+        );
+        static::assertEquals(
+            $externalIdA,
+            $response['uploadedOrders'][0]['externalId']
+        );
+        static::assertEquals(
+            $externalIdB,
+            $response['uploadedOrders'][1]['externalId']
+        );
+    }
+
+    /**
+     * @group orders_v5
+     */
+    public function testOrdersCombine()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $responseCreateFirst = $client->request->ordersCreate([
+            'firstName'  => 'Aaa111',
+            'externalId' => 'AA-' . time(),
+            'phone'      => '+79999999990'
+        ]);
+
+        static::assertTrue(
+            $responseCreateFirst->isSuccessful(),
+            'Got order'
+        );
+
+        $responseCreateSecond = $client->request->ordersCreate([
+            'firstName'  => 'Aaa222',
+            'externalId' => 'BB-' . time(),
+            'phone'      => '+79999999991'
+        ]);
+
+        static::assertTrue(
+            $responseCreateSecond->isSuccessful(),
+            'Got order'
+        );
+
+        $order = ['id' => $responseCreateFirst['id']];
+        $resultOrder = ['id' => $responseCreateSecond['id']];
+
+        $response = $client->request->ordersCombine($order, $resultOrder, 'ours');
+
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Orders combined'
+        );
+    }
+
+    public function testOrdersPayment()
+    {
+        $client = static::getApiClient(null, null, "v5");
+        $externalId = 'AA-' . time();
+
+        $responseCreateFirst = $client->request->ordersCreate([
+            'firstName'  => 'Aaa111aaA',
+            'phone'      => '+79999999990'
+        ]);
+
+        static::assertTrue(
+            $responseCreateFirst->isSuccessful(),
+            'Got order'
+        );
+
+        $payment = [
+            'externalId' => $externalId,
+            'order' => ['id' => $responseCreateFirst['id']],
+            'amount' => 1200,
+            'comment' => 'test payment',
+            'type' => 'cash',
+            'status' => 'paid'
+        ];
+
+        $response = $client->request->ordersPaymentCreate($payment);
+
+        static::assertTrue(
+            $response->isSuccessful(),
+            'Got payment'
+        );
+
+        $paymentEdit = [
+            'id' => $response['id'],
+            'externalId' => $externalId,
+            'amount' => 1500,
+            'comment' => 'test payment!',
+            'type' => 'cash',
+            'status' => 'paid'
+        ];
+
+        $responseAgain = $client->request->ordersPaymentEdit($paymentEdit);
+
+        static::assertTrue(
+            $responseAgain->isSuccessful(),
+            'Got payment'
+        );
+    }
+}
diff --git a/tests/RetailCrm/Tests/Methods/Version5/ApiClientPacksTest.php b/tests/RetailCrm/Tests/Methods/Version5/ApiClientPacksTest.php
new file mode 100644
index 0000000..34d6991
--- /dev/null
+++ b/tests/RetailCrm/Tests/Methods/Version5/ApiClientPacksTest.php
@@ -0,0 +1,68 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client packs test class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Tests\Methods\Version5;
+
+use RetailCrm\Test\TestCase;
+
+/**
+ * Class ApiClientPacksTest
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+class ApiClientPacksTest extends TestCase
+{
+    /**
+     * @group packs_v5
+     */
+    public function testPacksHistory()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->ordersPacksHistory();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->success);
+        static::assertTrue(
+            isset($response['history']),
+            'API returns orders assembly history'
+        );
+        static::assertTrue(
+            isset($response['generatedAt']),
+            'API returns generatedAt in orders assembly history'
+        );
+    }
+
+    /**
+     * @group packs_v5
+     */
+    public function testPacksCreateFailed()
+    {
+        $client = static::getApiClient(null, null, "v5");
+        $pack = [
+            'itemId' => 12,
+            'store' => 'test',
+            'quantity' => 2
+        ];
+
+        $response = $client->request->ordersPacksCreate($pack);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(400, $response->getStatusCode());
+        static::assertFalse($response->success);
+    }
+}
diff --git a/tests/RetailCrm/Tests/Methods/Version5/ApiClientPricesTest.php b/tests/RetailCrm/Tests/Methods/Version5/ApiClientPricesTest.php
new file mode 100644
index 0000000..07cc993
--- /dev/null
+++ b/tests/RetailCrm/Tests/Methods/Version5/ApiClientPricesTest.php
@@ -0,0 +1,114 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client prices test class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Tests\Methods\Version5;
+
+use RetailCrm\Test\TestCase;
+
+/**
+ * Class ApiClientPricesTest
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+class ApiClientPricesTest extends TestCase
+{
+
+    /**
+     * @group prices_v5
+     */
+    public function testPricesEdit()
+    {
+
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->pricesTypesEdit(
+            [
+                'code' => 'sample_v4_price_code',
+                'name' => 'Sample v4 price type',
+                'ordering' => 500,
+                'active' => true
+            ]
+        );
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * @depends testPricesEdit
+     * @group prices_v5
+     */
+    public function testPricesGet()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->pricesTypes();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue(in_array($response->getStatusCode(), [200, 201]));
+        static::assertTrue($response->isSuccessful());
+    }
+
+
+
+    /**
+     * @group prices_v5
+     * @expectedException \InvalidArgumentException
+     */
+    public function testPricesUploadExceptionEmpty()
+    {
+        $client = static::getApiClient(null, null, "v5");
+        $client->request->storePricesUpload([]);
+    }
+
+    /**
+     * @depends testPricesEdit
+     * @group prices_v5
+     */
+    public function testPricesUpload()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $xmlIdA = 'upload-a-' . time();
+        $xmlIdB = 'upload-b-' . time();
+
+        $response = $client->request->storePricesUpload([
+            [
+                'xmlId' => $xmlIdA,
+                'prices' => [
+                    [
+                        'code' => 'sample_v4_price_code',
+                        'price' => 1700
+                    ]
+                ]
+            ],
+            [
+                'xmlId' => $xmlIdB,
+                'prices' => [
+                    [
+                        'code' => 'sample_v4_price_code',
+                        'price' => 1500
+                    ]
+                ]
+            ],
+        ]);
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+    }
+}
diff --git a/tests/RetailCrm/Tests/Methods/Version5/ApiClientReferenceTest.php b/tests/RetailCrm/Tests/Methods/Version5/ApiClientReferenceTest.php
new file mode 100644
index 0000000..da64adf
--- /dev/null
+++ b/tests/RetailCrm/Tests/Methods/Version5/ApiClientReferenceTest.php
@@ -0,0 +1,171 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client references test class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Tests\Methods\Version5;
+
+use RetailCrm\Test\TestCase;
+
+/**
+ * Class ApiClientReferenceTest
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+class ApiClientReferenceTest extends TestCase
+{
+    /**
+     * @group reference_v5
+     * @dataProvider getListDictionaries
+     * @param $name
+     */
+    public function testList($name)
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $method = $name . 'List';
+        $response = $client->request->$method();
+
+        /* @var \RetailCrm\Response\ApiResponse $response */
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue($response->isSuccessful());
+        static::assertTrue(isset($response[$name]));
+        static::assertTrue(is_array($response[$name]));
+    }
+
+    /**
+     * @group reference_v5
+     * @dataProvider getEditDictionaries
+     * @expectedException \InvalidArgumentException
+     *
+     * @param $name
+     */
+    public function testEditingException($name)
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $method = $name . 'Edit';
+        $client->request->$method([]);
+    }
+
+    /**
+     * @group reference_v5
+     * @dataProvider getEditDictionaries
+     *
+     * @param $name
+     */
+    public function testEditing($name)
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $code = 'dict-' . strtolower($name) . '-' . time();
+        $method = $name . 'Edit';
+        $params = [
+            'code' => $code,
+            'name' => 'Aaa' . $code,
+            'active' => false
+        ];
+        if ($name == 'statuses') {
+            $params['group'] = 'new';
+        }
+
+        $response = $client->request->$method($params);
+        /* @var \RetailCrm\Response\ApiResponse $response */
+
+        static::assertTrue(in_array($response->getStatusCode(), [200, 201]));
+
+        $response = $client->request->$method([
+            'code' => $code,
+            'name' => 'Bbb' . $code,
+            'active' => false
+        ]);
+
+        static::assertTrue(in_array($response->getStatusCode(), [200, 201]));
+    }
+
+    /**
+     * @group reference_v5
+     * @group site
+     */
+    public function testSiteEditing()
+    {
+        $name = 'sites';
+        $client = static::getApiClient(null, null, "v5");
+
+        $code = 'dict-' . strtolower($name) . '-' . time();
+        $method = $name . 'Edit';
+        $params = [
+            'code' => $code,
+            'name' => 'Aaa',
+            'active' => false
+        ];
+
+        $response = $client->request->$method($params);
+        /* @var \RetailCrm\Response\ApiResponse $response */
+
+        static::assertEquals(400, $response->getStatusCode());
+
+        if ($code == $client->request->getSite()) {
+            $method = $name . 'Edit';
+            $params = [
+                'code' => $code,
+                'name' => 'Aaa' . time(),
+                'active' => false
+            ];
+
+            $response = $client->request->$method($params);
+            static::assertEquals(200, $response->getStatusCode());
+        }
+    }
+
+    /**
+     * @return array
+     */
+    public function getListDictionaries()
+    {
+        return [
+            ['deliveryServices'],
+            ['deliveryTypes'],
+            ['orderMethods'],
+            ['orderTypes'],
+            ['paymentStatuses'],
+            ['paymentTypes'],
+            ['productStatuses'],
+            ['statusGroups'],
+            ['statuses'],
+            ['sites'],
+            ['stores'],
+        ];
+    }
+
+    /**
+     * @return array
+     */
+    public function getEditDictionaries()
+    {
+        return [
+            ['deliveryServices'],
+            ['deliveryTypes'],
+            ['orderMethods'],
+            ['orderTypes'],
+            ['paymentStatuses'],
+            ['paymentTypes'],
+            ['productStatuses'],
+            ['statuses'],
+        ];
+    }
+}
diff --git a/tests/RetailCrm/Tests/Methods/Version5/ApiClientStoreTest.php b/tests/RetailCrm/Tests/Methods/Version5/ApiClientStoreTest.php
new file mode 100644
index 0000000..cbb4a66
--- /dev/null
+++ b/tests/RetailCrm/Tests/Methods/Version5/ApiClientStoreTest.php
@@ -0,0 +1,159 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client store test class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Tests\Methods\Version5;
+
+use RetailCrm\Test\TestCase;
+
+/**
+ * Class ApiClientStoreTest
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+class ApiClientStoreTest extends TestCase
+{
+    const SNAME = 'Test Store V5';
+    const SCODE = 'test-store-v5';
+
+    /**
+     * @group store_v4
+     */
+    public function testStoreCreate()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->storesEdit(['name' => self::SNAME, 'code' => self::SCODE]);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue(in_array($response->getStatusCode(), [200, 201]));
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * @group store_v4
+     */
+    public function testStoreInventories()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->storeInventories();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+        static::assertTrue(
+            isset($response['offers']),
+            'API returns orders assembly history'
+        );
+    }
+
+    /**
+     * @group store_v4
+     * @expectedException \InvalidArgumentException
+     */
+    public function testInventoriesException()
+    {
+        $client = static::getApiClient(null, null, "v5");
+        $client->request->storeInventoriesUpload([]);
+    }
+
+    /**
+     * @group store_v4
+     */
+    public function testInventoriesUpload()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->storeInventoriesUpload([
+            [
+                'externalId' => 'pTKIKAeghYzX21HTdzFCe1',
+                'stores' => [
+                    [
+                        'code' => self::SCODE,
+                        'available' => 10,
+                        'purchasePrice' => 1700
+                    ]
+                ]
+            ],
+            [
+                'externalId' => 'JQIvcrCtiSpOV3AAfMiQB3',
+                'stores' => [
+                    [
+                        'code' => self::SCODE,
+                        'available' => 20,
+                        'purchasePrice' => 1500
+                    ]
+                ]
+            ],
+        ]);
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * @group integration
+     */
+    public function testInventoriesFailed()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $externalIdA = 'upload-a-' . time();
+        $externalIdB = 'upload-b-' . time();
+
+        $response = $client->request->storeInventoriesUpload([
+            [
+                'externalId' => $externalIdA,
+                'available' => 10,
+                'purchasePrice' => 1700
+            ],
+            [
+                'externalId' => $externalIdB,
+                'available' => 20,
+                'purchasePrice' => 1500
+            ],
+        ]);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(400, $response->getStatusCode());
+        static::assertTrue(isset($response['errorMsg']), $response['errorMsg']);
+    }
+
+    /**
+     * @group store_v4
+     */
+    public function testStoreProducts()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->storeProducts();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * @group store_v4
+     */
+    public function testStoreProductsGroups()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->storeProductsGroups();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+    }
+}
diff --git a/tests/RetailCrm/Tests/Methods/Version5/ApiClientTasksTest.php b/tests/RetailCrm/Tests/Methods/Version5/ApiClientTasksTest.php
new file mode 100644
index 0000000..ca0a623
--- /dev/null
+++ b/tests/RetailCrm/Tests/Methods/Version5/ApiClientTasksTest.php
@@ -0,0 +1,84 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client orders test class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Tests\Methods\Version5;
+
+use RetailCrm\Test\TestCase;
+
+/**
+ * Class ApiClientTasksTest
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+class ApiClientTasksTest extends TestCase
+{
+    /**
+     * @group tasks_v5
+     */
+    public function testTasksList()
+    {
+        $client = static::getApiClient(null, null, 'v5');
+
+        $response = $client->request->tasksList();
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+    }
+
+    /**
+     * @group tasks_v5
+     * @expectedException \InvalidArgumentException
+     */
+    public function testTasksCreateExceptionEmpty()
+    {
+        $client = static::getApiClient(null, null, 'v5');
+        $client->request->tasksCreate([]);
+    }
+
+    public function testTasksCRU()
+    {
+        $client = static::getApiClient(null, null, 'v5');
+
+        $task = [
+            'text' => 'test task',
+            'commentary' => 'test task commentary',
+            'performerId' => $_SERVER['CRM_USER_ID'],
+            'complete' => false
+        ];
+
+        $responseCreate = $client->request->tasksCreate($task);
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $responseCreate);
+        static::assertEquals(201, $responseCreate->getStatusCode());
+
+        $uid = $responseCreate['id'];
+
+        $responseRead = $client->request->tasksGet($uid);
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $responseRead);
+        static::assertEquals(200, $responseRead->getStatusCode());
+
+        $task['id'] = $uid;
+        $task['complete'] = true;
+
+        $responseUpdate = $client->request->tasksEdit($task);
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $responseUpdate);
+        static::assertEquals(200, $responseUpdate->getStatusCode());
+    }
+}
diff --git a/tests/RetailCrm/Tests/Methods/Version5/ApiClientTelephonyTest.php b/tests/RetailCrm/Tests/Methods/Version5/ApiClientTelephonyTest.php
new file mode 100644
index 0000000..7faaee4
--- /dev/null
+++ b/tests/RetailCrm/Tests/Methods/Version5/ApiClientTelephonyTest.php
@@ -0,0 +1,159 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client telephony test class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Tests\Methods\Version5;
+
+use RetailCrm\Test\TestCase;
+
+/**
+ * Class ApiClientTelephonyTest
+ * @category RetailCrm
+ * @package RetailCrm\Tests
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+class ApiClientTelephonyTest extends TestCase
+{
+
+    const TEL_CODE = 'telephony-code-v5';
+    const TEL_CLIENT = '456';
+    const TEL_IMAGE = 'http://www.mec.ph/horizon/wp-content/uploads/2011/11/telephony.svg';
+
+    /**
+     * Settings Edit test
+     *
+     * @group telephony
+     *
+     * @return void
+     */
+    public function testTelephonySettingsEdit()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->telephonySettingsEdit(
+            self::TEL_CODE,
+            self::TEL_CLIENT,
+            true,
+            'TestTelephonyV5',
+            false,
+            self::TEL_IMAGE,
+            [['userId' => $_SERVER['CRM_USER_ID'], 'code' => '101']],
+            [['siteCode' => 'api-client-php', 'externalPhone' => '+74950000000']]
+        );
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue(in_array($response->getStatusCode(), [200, 201]));
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * Settings Get test
+     *
+     * @group telephony
+     *
+     * @return void
+     */
+    public function testTelephonySettingsGet()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->telephonySettingsGet(self::TEL_CODE);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * Event test
+     *
+     * @group telephony
+     *
+     * @return void
+     */
+    public function testTelephonyEvent()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->telephonyCallEvent(
+            '+79999999999',
+            'in',
+            ['101'],
+            'failed',
+            '+74950000000'
+
+        );
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * Upload test
+     *
+     * @group telephony
+     *
+     * @return void
+     */
+    public function testTelephonyUpload()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->telephonyCallsUpload(
+            [
+                [
+                    'date' => '2016-07-22 00:18:00',
+                    'type' => 'in',
+                    'phone' => '+79999999999',
+                    'code' => '101',
+                    'result' => 'answered',
+                    'externalId' => rand(10, 100),
+                    'recordUrl' => 'http://download.retailcrm.pro/api-client-files/beep1.mp3'
+                ],
+                [
+                    'date' => '2016-07-22 00:24:00',
+                    'type' => 'in',
+                    'phone' => '+79999999999',
+                    'code' => '101',
+                    'result' => 'answered',
+                    'externalId' => rand(10, 100),
+                    'recordUrl' => 'http://download.retailcrm.pro/api-client-files/beep2.mp3'
+                ]
+            ]
+        );
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * Manager test
+     *
+     * @group telephony
+     *
+     * @return void
+     */
+    public function testTelephonyManager()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->telephonyCallManager('+79999999999', 1);
+
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertEquals(200, $response->getStatusCode());
+        static::assertTrue($response->isSuccessful());
+    }
+}
diff --git a/tests/RetailCrm/Tests/Methods/Version5/ApiClientUsersTest.php b/tests/RetailCrm/Tests/Methods/Version5/ApiClientUsersTest.php
new file mode 100644
index 0000000..15e912c
--- /dev/null
+++ b/tests/RetailCrm/Tests/Methods/Version5/ApiClientUsersTest.php
@@ -0,0 +1,81 @@
+<?php
+
+/**
+ * PHP version 5.4
+ *
+ * API client users test class
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+
+namespace RetailCrm\Tests\Methods\Version5;
+
+use RetailCrm\Test\TestCase;
+
+/**
+ * Class ApiClientUsersTest
+ *
+ * @category RetailCrm
+ * @package  RetailCrm
+ * @author   RetailCrm <integration@retailcrm.ru>
+ * @license  https://opensource.org/licenses/MIT MIT License
+ * @link     http://www.retailcrm.ru/docs/Developers/ApiVersion5
+ */
+class ApiClientUsersTest extends TestCase
+{
+    /**
+     * @group users_v5
+     */
+    public function testUsersGroups()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->usersGroups();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue(in_array($response->getStatusCode(), [200, 201]));
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * @group users_v5
+     */
+    public function testUsersList()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->usersList();
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue(in_array($response->getStatusCode(), [200, 201]));
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * @group users_v5
+     */
+    public function testUsersGet()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->usersGet($_SERVER["CRM_USER_ID"]);
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue(in_array($response->getStatusCode(), [200, 201]));
+        static::assertTrue($response->isSuccessful());
+    }
+
+    /**
+     * @group users_v5
+     */
+    public function testUsersStatus()
+    {
+        $client = static::getApiClient(null, null, "v5");
+
+        $response = $client->request->usersStatus($_SERVER["CRM_USER_ID"], 'dinner');
+        static::assertInstanceOf('RetailCrm\Response\ApiResponse', $response);
+        static::assertTrue(in_array($response->getStatusCode(), [200, 201]));
+        static::assertTrue($response->isSuccessful());
+    }
+}
diff --git a/tests/RetailCrm/Tests/Response/ApiResponseTest.php b/tests/RetailCrm/Tests/Response/ApiResponseTest.php
index 80bc6dc..70d2c66 100644
--- a/tests/RetailCrm/Tests/Response/ApiResponseTest.php
+++ b/tests/RetailCrm/Tests/Response/ApiResponseTest.php
@@ -1,7 +1,7 @@
 <?php
 
 /**
- * PHP version 5.3
+ * PHP version 5.4
  *
  * API client response test class
  *
@@ -29,19 +29,19 @@ use RetailCrm\Response\ApiResponse;
 class ApiResponseTest extends TestCase
 {
     /**
-     * @group unit
+     * @group response
      */
     public function testSuccessConstruct()
     {
         $response = new ApiResponse(200);
-        $this->assertInstanceOf(
+        static::assertInstanceOf(
             'RetailCrm\Response\ApiResponse',
             $response,
             'Response object created'
         );
 
         $response = new ApiResponse(201, '{ "success": true }');
-        $this->assertInstanceOf(
+        static::assertInstanceOf(
             'RetailCrm\Response\ApiResponse',
             $response,
             'Response object created'
@@ -49,28 +49,28 @@ class ApiResponseTest extends TestCase
     }
 
     /**
-     * @group unit
+     * @group response
      * @expectedException \RetailCrm\Exception\InvalidJsonException
      */
     public function testJsonInvalid()
     {
-        $response = new ApiResponse(400, '{ "asdf": }');
+        new ApiResponse(400, '{ "asdf": }');
     }
 
     /**
-     * @group unit
+     * @group response
      */
     public function testStatusCodeGetting()
     {
         $response = new ApiResponse(200);
-        $this->assertEquals(
+        static::assertEquals(
             200,
             $response->getStatusCode(),
             'Response object returns the right status code'
         );
 
         $response = new ApiResponse(460, '{ "success": false }');
-        $this->assertEquals(
+        static::assertEquals(
             460,
             $response->getStatusCode(),
             'Response object returns the right status code'
@@ -78,38 +78,38 @@ class ApiResponseTest extends TestCase
     }
 
     /**
-     * @group unit
+     * @group response
      */
     public function testIsSuccessful()
     {
         $response = new ApiResponse(200);
-        $this->assertTrue(
+        static::assertTrue(
             $response->isSuccessful(),
             'Request was successful'
         );
 
         $response = new ApiResponse(460, '{ "success": false }');
-        $this->assertFalse(
+        static::assertFalse(
             $response->isSuccessful(),
             'Request was failed'
         );
     }
 
     /**
-     * @group unit
+     * @group response
      */
     public function testMagicCall()
     {
         $response = new ApiResponse(201, '{ "success": true }');
-        $this->assertEquals(
+        static::assertEquals(
             true,
-            $response->getSuccess(),
+            $response->isSuccessful(),
             'Response object returns property value throw magic method'
         );
     }
 
     /**
-     * @group unit
+     * @group response
      * @expectedException \InvalidArgumentException
      */
     public function testMagicCallException1()
@@ -119,7 +119,7 @@ class ApiResponseTest extends TestCase
     }
 
     /**
-     * @group unit
+     * @group response
      * @expectedException \InvalidArgumentException
      */
     public function testMagicCallException2()
@@ -129,12 +129,12 @@ class ApiResponseTest extends TestCase
     }
 
     /**
-     * @group unit
+     * @group response
      */
     public function testMagicGet()
     {
         $response = new ApiResponse(201, '{ "success": true }');
-        $this->assertEquals(
+        static::assertEquals(
             true,
             $response->success,
             'Response object returns property value throw magic get'
@@ -142,7 +142,7 @@ class ApiResponseTest extends TestCase
     }
 
     /**
-     * @group unit
+     * @group response
      * @expectedException \InvalidArgumentException
      */
     public function testMagicGetException1()
@@ -152,7 +152,7 @@ class ApiResponseTest extends TestCase
     }
 
     /**
-     * @group unit
+     * @group response
      * @expectedException \InvalidArgumentException
      */
     public function testMagicGetException2()
@@ -162,12 +162,12 @@ class ApiResponseTest extends TestCase
     }
 
     /**
-     * @group unit
+     * @group response
      */
     public function testArrayGet()
     {
         $response = new ApiResponse(201, '{ "success": true }');
-        $this->assertEquals(
+        static::assertEquals(
             true,
             $response['success'],
             'Response object returns property value throw magic array get'
@@ -175,7 +175,7 @@ class ApiResponseTest extends TestCase
     }
 
     /**
-     * @group unit
+     * @group response
      * @expectedException \InvalidArgumentException
      */
     public function testArrayGetException1()
@@ -185,7 +185,7 @@ class ApiResponseTest extends TestCase
     }
 
     /**
-     * @group unit
+     * @group response
      * @expectedException \InvalidArgumentException
      */
     public function testArrayGetException2()
@@ -195,25 +195,25 @@ class ApiResponseTest extends TestCase
     }
 
     /**
-     * @group unit
+     * @group response
      */
     public function testArrayIsset()
     {
         $response = new ApiResponse(201, '{ "success": true }');
 
-        $this->assertTrue(
+        static::assertTrue(
             isset($response['success']),
             'Response object returns property existing'
         );
 
-        $this->assertFalse(
+        static::assertFalse(
             isset($response['suess']),
             'Response object returns property existing'
         );
     }
 
     /**
-     * @group unit
+     * @group response
      * @expectedException \BadMethodCallException
      */
     public function testArraySetException1()
@@ -223,7 +223,7 @@ class ApiResponseTest extends TestCase
     }
 
     /**
-     * @group unit
+     * @group response
      * @expectedException \BadMethodCallException
      */
     public function testArraySetException2()
@@ -233,7 +233,7 @@ class ApiResponseTest extends TestCase
     }
 
     /**
-     * @group unit
+     * @group response
      * @expectedException \BadMethodCallException
      */
     public function testArrayUnsetException1()
@@ -243,7 +243,7 @@ class ApiResponseTest extends TestCase
     }
 
     /**
-     * @group unit
+     * @group response
      * @expectedException \BadMethodCallException
      */
     public function testArrayUnsetException2()
@@ -253,18 +253,18 @@ class ApiResponseTest extends TestCase
     }
 
     /**
-     * @group unit
+     * @group response
      */
     public function testMagicIsset()
     {
         $response = new ApiResponse(201, '{ "success": true }');
 
-        $this->assertTrue(
+        static::assertTrue(
             isset($response->success),
             'Response object returns property existing'
         );
 
-        $this->assertFalse(
+        static::assertFalse(
             isset($response->suess),
             'Response object returns property existing'
         );