diff --git a/src/upload/catalog/model/extension/retailcrm/order.php b/src/upload/catalog/model/extension/retailcrm/order.php
index c844c9b..c8e67fb 100644
--- a/src/upload/catalog/model/extension/retailcrm/order.php
+++ b/src/upload/catalog/model/extension/retailcrm/order.php
@@ -67,10 +67,12 @@ class ModelExtensionRetailcrmOrder extends Model {
         }
 
         if ($create) {
+            $order = self::filterRecursive($order);
             $retailcrmApiClient->ordersCreate($order);
         } else {
             $order_payment = reset($order['payments']);
             unset($order['payments']);
+            $order = self::filterRecursive($order);
             $response = $retailcrmApiClient->ordersEdit($order);
 
             if ($this->settings[$this->moduleTitle . '_apiversion'] == 'v5' && $response->isSuccessful()) {
@@ -396,4 +398,29 @@ class ModelExtensionRetailcrmOrder extends Model {
 
         return $resultTotals;
     }
+
+    /**
+     * Recursive array filter
+     *
+     * @param array $haystack input array
+     *
+     * @return array
+     */
+    public static function filterRecursive($haystack)
+    {
+        foreach ($haystack as $key => $value) {
+            if (is_array($value)) {
+                $haystack[$key] = self::filterRecursive($haystack[$key]);
+            }
+            if ($haystack[$key] === null
+                || $haystack[$key] === ''
+                || (is_array($haystack[$key]) && empty($haystack[$key]))
+            ) {
+                unset($haystack[$key]);
+            } elseif (!is_array($value)) {
+                $haystack[$key] = trim($value);
+            }
+        }
+        return $haystack;
+    }
 }
diff --git a/tests/opencart_sample_data.sql b/tests/opencart_sample_data.sql
index bcb8974..3e468f0 100644
--- a/tests/opencart_sample_data.sql
+++ b/tests/opencart_sample_data.sql
@@ -24,8 +24,8 @@ TRUNCATE TABLE `oc_customer_transaction`;
 TRUNCATE TABLE `oc_customer_wishlist`;
 TRUNCATE TABLE `oc_order`;
 
-INSERT INTO `oc_order` (`order_id`, `invoice_no`, `invoice_prefix`, `store_id`, `store_name`, `store_url`, `customer_id`, `customer_group_id`, `firstname`, `lastname`, `email`, `telephone`, `fax`, `custom_field`, `payment_firstname`, `payment_lastname`, `payment_company`, `payment_address_1`, `payment_address_2`, `payment_city`, `payment_postcode`, `payment_country`, `payment_country_id`, `payment_zone`, `payment_zone_id`, `payment_address_format`, `payment_custom_field`, `payment_method`, `payment_code`, `shipping_firstname`, `shipping_lastname`, `shipping_company`, `shipping_address_1`, `shipping_address_2`, `shipping_city`, `shipping_postcode`, `shipping_country`, `shipping_country_id`, `shipping_zone`, `shipping_zone_id`, `shipping_address_format`, `shipping_custom_field`, `shipping_method`, `shipping_code`, `comment`, `total`, `order_status_id`, `affiliate_id`, `commission`, `marketing_id`, `tracking`, `language_id`, `currency_id`, `currency_code`, `currency_value`, `ip`, `forwarded_ip`, `user_agent`, `accept_language`, `date_added`, `date_modified`) VALUES ('1', '0', 'INV-2016-00', '0', 'Opencart', 'http://localhost:8000/', '1', '1', 'Test', 'Test', 'test@mail.ru', '+7 (000) 000-00-00', '', '', 'Test', 'Test', '', 'Address', 'Address 2', 'Test', '111111', 'Russian Federation', '176', 'Rostov-na-Donu', '99', '', '[]', 'Cash on delivery', 'cod', 'Test', 'Test', '', 'Address', 'Address 2', 'Test', '111111', 'Russian Federation', '176', 'Rostov-na-Donu', '99', '', '[]', 'Flat Rate', 'flat.flat', '', '106.0000', '1', '0', '0.0000', '0', '', '1', '1', 'USD', '1.00000000', '172.21.0.1', '', 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.62 Safari/537.36', 'ru-RU,ru;q=0.9,en-US;q=0.8,en;q=0.7', '2018-06-07 13:51:10', '2018-06-07 13:51:23');
-INSERT INTO `oc_order` (`order_id`, `invoice_no`, `invoice_prefix`, `store_id`, `store_name`, `store_url`, `customer_id`, `customer_group_id`, `firstname`, `lastname`, `email`, `telephone`, `fax`, `custom_field`, `payment_firstname`, `payment_lastname`, `payment_company`, `payment_address_1`, `payment_address_2`, `payment_city`, `payment_postcode`, `payment_country`, `payment_country_id`, `payment_zone`, `payment_zone_id`, `payment_address_format`, `payment_custom_field`, `payment_method`, `payment_code`, `shipping_firstname`, `shipping_lastname`, `shipping_company`, `shipping_address_1`, `shipping_address_2`, `shipping_city`, `shipping_postcode`, `shipping_country`, `shipping_country_id`, `shipping_zone`, `shipping_zone_id`, `shipping_address_format`, `shipping_custom_field`, `shipping_method`, `shipping_code`, `comment`, `total`, `order_status_id`, `affiliate_id`, `commission`, `marketing_id`, `tracking`, `language_id`, `currency_id`, `currency_code`, `currency_value`, `ip`, `forwarded_ip`, `user_agent`, `accept_language`, `date_added`, `date_modified`) VALUES ('2', '0', 'INV-2016-00', '0', 'Opencart', 'http://localhost:8000/', '0', '1', 'Test', 'Test', 'test@mail.ru', '+7 (000) 000-00-00', '', '[]', 'Test', 'Test', '', 'Address', 'Address 2', 'Test', '111111', 'Russian Federation', '176', 'Rostov-na-Donu', '99', '', '[]', 'Cash on delivery', 'cod', 'Test', 'Test', '', 'Address', 'Address 2', 'Test', '111111', 'Russian Federation', '176', 'Rostov-na-Donu', '99', '', '[]', 'Flat Rate', 'flat.flat', '', '85.0000', '1', '0', '0.0000', '0', '', '1', '1', 'USD', '1.00000000', '172.21.0.1', '', 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.62 Safari/537.36', 'ru-RU,ru;q=0.9,en-US;q=0.8,en;q=0.7', '2018-06-07 13:53:50', '2018-06-07 13:54:00');
+INSERT INTO `oc_order` (`order_id`, `invoice_no`, `invoice_prefix`, `store_id`, `store_name`, `store_url`, `customer_id`, `customer_group_id`, `firstname`, `lastname`, `email`, `telephone`, `fax`, `custom_field`, `payment_firstname`, `payment_lastname`, `payment_company`, `payment_address_1`, `payment_address_2`, `payment_city`, `payment_postcode`, `payment_country`, `payment_country_id`, `payment_zone`, `payment_zone_id`, `payment_address_format`, `payment_custom_field`, `payment_method`, `payment_code`, `shipping_firstname`, `shipping_lastname`, `shipping_company`, `shipping_address_1`, `shipping_address_2`, `shipping_city`, `shipping_postcode`, `shipping_country`, `shipping_country_id`, `shipping_zone`, `shipping_zone_id`, `shipping_address_format`, `shipping_custom_field`, `shipping_method`, `shipping_code`, `comment`, `total`, `order_status_id`, `affiliate_id`, `commission`, `marketing_id`, `tracking`, `language_id`, `currency_id`, `currency_code`, `currency_value`, `ip`, `forwarded_ip`, `user_agent`, `accept_language`, `date_added`, `date_modified`) VALUES ('1', '0', 'INV-2016-00', '0', 'Opencart', 'http://localhost:8000/', '1', '1', 'Test', 'Test', 'test@mail.ru', '+7 (000) 000-00-00', '', '', 'Test', 'Test', '', 'Address', 'Address 2', 'Test', '111111', 'Russian Federation', '176', 'Rostov-na-Donu', '99', '', '[]', 'Cash on delivery', 'cod', 'Test', 'Test', '', 'Address', 'Address 2', 'Test', '111111', 'Russian Federation', '176', 'Rostov-na-Donu', '99', '', '[]', 'Flat Rate', 'flat.flat', 'test comment', '106.0000', '1', '0', '0.0000', '0', '', '1', '1', 'USD', '1.00000000', '172.21.0.1', '', 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.62 Safari/537.36', 'ru-RU,ru;q=0.9,en-US;q=0.8,en;q=0.7', '2018-06-07 13:51:10', '2018-06-07 13:51:23');
+INSERT INTO `oc_order` (`order_id`, `invoice_no`, `invoice_prefix`, `store_id`, `store_name`, `store_url`, `customer_id`, `customer_group_id`, `firstname`, `lastname`, `email`, `telephone`, `fax`, `custom_field`, `payment_firstname`, `payment_lastname`, `payment_company`, `payment_address_1`, `payment_address_2`, `payment_city`, `payment_postcode`, `payment_country`, `payment_country_id`, `payment_zone`, `payment_zone_id`, `payment_address_format`, `payment_custom_field`, `payment_method`, `payment_code`, `shipping_firstname`, `shipping_lastname`, `shipping_company`, `shipping_address_1`, `shipping_address_2`, `shipping_city`, `shipping_postcode`, `shipping_country`, `shipping_country_id`, `shipping_zone`, `shipping_zone_id`, `shipping_address_format`, `shipping_custom_field`, `shipping_method`, `shipping_code`, `comment`, `total`, `order_status_id`, `affiliate_id`, `commission`, `marketing_id`, `tracking`, `language_id`, `currency_id`, `currency_code`, `currency_value`, `ip`, `forwarded_ip`, `user_agent`, `accept_language`, `date_added`, `date_modified`) VALUES ('2', '0', 'INV-2016-00', '0', 'Opencart', 'http://localhost:8000/', '0', '1', 'Test', 'Test', 'test@mail.ru', '+7 (000) 000-00-00', '', '[]', 'Test', 'Test', '', 'Address', 'Address 2', 'Test', '111111', 'Russian Federation', '176', 'Rostov-na-Donu', '99', '', '[]', 'Cash on delivery', 'cod', 'Test', 'Test', '', 'Address', 'Address 2', 'Test', '111111', 'Russian Federation', '176', 'Rostov-na-Donu', '99', '', '[]', 'Flat Rate', 'flat.flat', 'test comment', '85.0000', '1', '0', '0.0000', '0', '', '1', '1', 'USD', '1.00000000', '172.21.0.1', '', 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.62 Safari/537.36', 'ru-RU,ru;q=0.9,en-US;q=0.8,en;q=0.7', '2018-06-07 13:53:50', '2018-06-07 13:54:00');
 
 TRUNCATE TABLE `oc_order_custom_field`;
 TRUNCATE TABLE `oc_order_history`;
@@ -53,4 +53,4 @@ INSERT INTO `oc_order_total` (`order_total_id`, `order_id`, `code`, `title`, `va
 INSERT INTO `oc_product_special` (`product_id`, `customer_group_id`, `priority`, `price`,`date_start`, `date_end`) values ('42', '2', '1', '110.000', CURDATE(), ADDDATE(CURDATE(),INTERVAL 10 DAY));
 INSERT INTO `oc_product_special` (`product_id`, `customer_group_id`, `priority`, `price`,`date_start`, `date_end`) values ('40', '1', '1', '50.000', CURDATE(), ADDDATE(CURDATE(),INTERVAL 10 DAY));
 
-TRUNCATE TABLE `oc_order_voucher`;
\ No newline at end of file
+TRUNCATE TABLE `oc_order_voucher`;