diff --git a/src/include/api/class-wc-retailcrm-client-v5.php b/src/include/api/class-wc-retailcrm-client-v5.php
index 35b75b1..f877604 100644
--- a/src/include/api/class-wc-retailcrm-client-v5.php
+++ b/src/include/api/class-wc-retailcrm-client-v5.php
@@ -2992,12 +2992,12 @@ class WC_Retailcrm_Client_V5
     }
 
     /** Maximum discount calculation */
-    public function calculateDiscountLoyalty(string $site, array $order)
+    public function calculateDiscountLoyalty(string $site, array $order, $bonuses = 0)
     {
         return $this->client->makeRequest(
             "/loyalty/calculate",
             WC_Retailcrm_Request::METHOD_POST,
-            ['site' => $site, 'order' => json_encode($order)]
+            ['site' => $site, 'order' => json_encode($order), 'bonuses' => $bonuses]
         );
     }
 
@@ -3011,12 +3011,12 @@ class WC_Retailcrm_Client_V5
         );
     }
 
-    public function cancelBonusOrder(string $site, array $order)
+    public function cancelBonusOrder(array $order)
     {
         return $this->client->makeRequest(
             "/orders/loyalty/cancel-bonus-operations",
             WC_Retailcrm_Request::METHOD_POST,
-            ['site' => $site, 'order' => json_encode($order)]
+            ['order' => json_encode($order)]
         );
     }
 
diff --git a/src/include/class-wc-retailcrm-loyalty.php b/src/include/class-wc-retailcrm-loyalty.php
index c6da194..67ab5d7 100644
--- a/src/include/class-wc-retailcrm-loyalty.php
+++ b/src/include/class-wc-retailcrm-loyalty.php
@@ -346,12 +346,29 @@ if (!class_exists('WC_Retailcrm_Loyalty')) :
             return $discountLp;
         }
 
-        public function isValidOrder($wcUser, $wcOrder)
+        public function isValidOrder($wcCustomer, $wcOrder)
         {
-            return !(!$wcUser || (isCorporateUserActivate($this->settings) && isCorporateOrder($wcUser, $wcOrder)));
+            return !(!$wcCustomer || (isCorporateUserActivate($this->settings) && isCorporateOrder($wcCustomer, $wcOrder)));
         }
 
-        public function applyLoyaltyDiscount($wcOrder, $discountLp, $createdOrder)
+        public function isValidUser($wcCustomer)
+        {
+            if (empty($wcCustomer)) {
+                return false;
+            }
+
+            try {
+                $response = $this->getLoyaltyAccounts($wcCustomer->get_id());
+            } catch (Throwable $exception) {
+                writeBaseLogs('Exception get loyalty accounts: ' . $exception->getMessage());
+
+                return false;
+            }
+
+            return isset($response['loyaltyAccounts'][0]);
+        }
+
+        public function applyLoyaltyDiscount($wcOrder, $createdOrder, $discountLp = 0)
         {
             $isPercentDiscount = false;
             $items = [];
@@ -378,9 +395,14 @@ if (!class_exists('WC_Retailcrm_Loyalty')) :
                 $items = $response['order']['items'];
             }
 
+            $this->calculateLoyaltyDiscount($wcOrder, $items);
+        }
+
+        public function calculateLoyaltyDiscount($wcOrder, $orderItems)
+        {
             $wcItems = $wcOrder->get_items();
 
-            foreach ($items as $item) {
+            foreach ($orderItems as $item) {
                 $externalId = $item['externalIds'][0]['value'];
                 $externalId = preg_replace('/^\d+\_/m', '', $externalId);
 
@@ -402,6 +424,37 @@ if (!class_exists('WC_Retailcrm_Loyalty')) :
 
             $wcOrder->calculate_totals();
         }
+
+        public function getCrmItemsInfo($orderExternalId)
+        {
+            $discountType = null;
+            $crmItems = [];
+
+            $response = $this->apiClient->ordersGet($orderExternalId);
+
+            if (!$response instanceof WC_Retailcrm_Response || !$response->isSuccessful() || !isset($response['order'])) {
+                writeBaseLogs('Process order: Error when receiving an order from the CRM. Order Id: ' . $orderExternalId);
+
+                return [];
+            }
+
+            foreach ($response['order']['items'] as $item) {
+                $externalId = $item['externalIds'][0]['value'];
+                $externalId = preg_replace('/^\d+\_/m', '', $externalId);
+                $crmItems[$externalId] = $item;
+
+                if (!$discountType) {
+                    foreach ($item['discounts'] as $discount) {
+                        if (in_array($discount['type'], ['bonus_charge', 'loyalty_level'])) {
+                            $discountType = $discount['type'];
+                            break;
+                        }
+                    }
+                }
+            }
+
+            return ['items' => $crmItems, 'discountType' => $discountType];
+        }
     }
 
 endif;
diff --git a/src/include/class-wc-retailcrm-orders.php b/src/include/class-wc-retailcrm-orders.php
index 6bfe6ec..0f28a55 100644
--- a/src/include/class-wc-retailcrm-orders.php
+++ b/src/include/class-wc-retailcrm-orders.php
@@ -44,6 +44,12 @@ if (!class_exists('WC_Retailcrm_Orders')) :
         /** @var array */
         private $order = [];
 
+        /** @var bool */
+        private $cancelLoyalty = false;
+
+        /** @var string */
+        private $loyaltyDiscountType = '';
+
         /** @var array */
         private $payment = [];
 
@@ -94,25 +100,34 @@ if (!class_exists('WC_Retailcrm_Orders')) :
                 $this->order_payment->resetData();
 
                 $wcOrder = wc_get_order($orderId);
-                $privilegeType = 'none';
 
                 if ($this->loyalty) {
+                    $wcCustomer = null;
+                    $privilegeType = 'none';
                     $discountLp = $this->loyalty->deleteLoyaltyCouponInOrder($wcOrder);
-                    $wcUser = $wcOrder->get_user();
+                    $dataOrder = $wcOrder->get_data();
 
-                    if (!$this->loyalty->isValidOrder($wcUser, $wcOrder)) {
+                    if (isset($dataOrder['customer_id'])) {
+                        $wcCustomer = new WC_Customer($dataOrder['customer_id']) ?? null;
+                    }
+
+                    if (!$this->loyalty->isValidOrder($wcCustomer, $wcOrder)) {
                         if ($discountLp > 0) {
                             writeBaseLogs('The user does not meet the requirements for working with the loyalty program. Order Id: ' . $orderId);
                         }
 
                         $discountLp = 0;
-                    } else {
+                        $privilegeType = 'none';
+                    } elseif ($this->loyalty->isValidUser($wcCustomer)) {
                         $privilegeType = 'loyalty_level';
                     }
                 }
 
                 $this->processOrder($wcOrder);
-                $this->order['privilegeType'] = $privilegeType;
+
+                if (isset($privilegeType)) {
+                    $this->order['privilegeType'] = $privilegeType;
+                }
 
                 $response = $this->retailcrm->ordersCreate($this->order);
 
@@ -124,7 +139,7 @@ if (!class_exists('WC_Retailcrm_Orders')) :
                 }
 
                 if (isset($discountLp) && $discountLp > 0) {
-                    $this->loyalty->applyLoyaltyDiscount($wcOrder, $discountLp, $response['order']);
+                    $this->loyalty->applyLoyaltyDiscount($wcOrder, $response['order'], $discountLp);
                 }
             } catch (Throwable $exception) {
                 writeBaseLogs(
@@ -302,16 +317,39 @@ if (!class_exists('WC_Retailcrm_Orders')) :
 
             try {
                 $wcOrder = wc_get_order($orderId);
+                $needRecalculate = false;
 
                 $this->processOrder($wcOrder, true);
 
-                $response = $this->retailcrm->ordersEdit($this->order);
+                if ($this->cancelLoyalty) {
+                    $this->cancelLoyalty = false;
+                    $this->order_item->cancelLoyalty = false;
+                    $needRecalculate = true;
 
-                // Allows you to verify order changes and perform additional actions
+                    if ($this->loyaltyDiscountType === 'loyalty_level') {
+                        $this->order['privilegeType'] = 'none';
+                    }
+
+                    if ($this->loyaltyDiscountType === 'bonus_charge') {
+                        $responseCancelBonus = $this->retailcrm->cancelBonusOrder(['externalId' => $this->order['externalId']]);
+
+                        if (!$responseCancelBonus instanceof WC_Retailcrm_Response || !$responseCancelBonus->isSuccessful()) {
+                            writeBaseLogs('Error when canceling bonuses');
+
+                            return null;
+                        }
+                    }
+                }
+
+                $response = $this->retailcrm->ordersEdit($this->order);
                 $response = apply_filters('retailcrm_order_update_after', $response, $wcOrder);
 
-                if ($response instanceof WC_Retailcrm_Response && $response->isSuccessful()) {
+                if ($response instanceof WC_Retailcrm_Response && $response->isSuccessful() && isset($response['order'])) {
                     $this->payment = $this->orderUpdatePaymentType($wcOrder);
+
+                    if ($needRecalculate) {
+                        $this->loyalty->calculateLoyaltyDiscount($wcOrder, $response['order']['items']);
+                    }
                 }
             } catch (Throwable $exception) {
                 writeBaseLogs(
@@ -447,15 +485,32 @@ if (!class_exists('WC_Retailcrm_Orders')) :
             }
 
             $orderData['delivery']['address'] = $this->order_address->build($order)->getData();
+
             $orderItems = [];
+            $crmItems = [];
+            $wcItems = $order->get_items();
+
+            if ($this->loyalty && $update) {
+                $result = $this->loyalty->getCrmItemsInfo($order->get_id());
+
+                if ($result !== []) {
+                    $crmItems = $result['items'];
+
+                    $this->cancelLoyalty = $this->order_item->isCancelLoyalty($wcItems, $crmItems);
+                    $this->loyaltyDiscountType = $result['discountType'];
+                }
+            }
 
             /** @var WC_Order_Item_Product $item */
-            foreach ($order->get_items() as $item) {
-                $orderItems[] = $this->order_item->build($item)->getData();
+            foreach ($wcItems as $id => $item) {
+                $crmItem = $crmItems[$id] ?? null;
+                $orderItems[] = $this->order_item->build($item, $crmItem)->getData();
 
-                $this->order_item->resetData();
+                $this->order_item->resetData($this->cancelLoyalty);
             }
 
+            unset($crmItems, $crmItem);
+
             $orderData['items'] = $orderItems;
             $orderData['discountManualAmount']  = 0;
             $orderData['discountManualPercent'] = 0;
diff --git a/src/include/functions.php b/src/include/functions.php
index b1afd25..2e099ea 100644
--- a/src/include/functions.php
+++ b/src/include/functions.php
@@ -213,7 +213,7 @@ function isCorporateUserActivate($settings)
     return isset($settings['corporate_enabled']) && $settings['corporate_enabled'] === WC_Retailcrm_Base::YES;
 }
 
-function isCorporateOrder($wcUser, $wcOrder)
+function isCorporateOrder($wcCustomer, $wcOrder)
 {
-    return !empty($wcUser->get_billing_company()) || !empty($wcOrder->get_billing_company());
+    return !empty($wcCustomer->get_billing_company()) || !empty($wcOrder->get_billing_company());
 }
diff --git a/src/include/order/class-wc-retailcrm-order-item.php b/src/include/order/class-wc-retailcrm-order-item.php
index b6186b5..53e593a 100644
--- a/src/include/order/class-wc-retailcrm-order-item.php
+++ b/src/include/order/class-wc-retailcrm-order-item.php
@@ -28,6 +28,9 @@ class WC_Retailcrm_Order_Item extends WC_Retailcrm_Abstracts_Data
      */
     protected $settings = [];
 
+    /** @var bool */
+    public $cancelLoyalty = false;
+
     /**
      * WC_Retailcrm_Order_Item constructor.
      *
@@ -43,13 +46,13 @@ class WC_Retailcrm_Order_Item extends WC_Retailcrm_Abstracts_Data
      *
      * @return self
      */
-    public function build($item)
+    public function build($item, $crmItem = null)
     {
         $decimalPlaces = wc_get_price_decimals();
 
         // Calculate price and discount
         $price         = $this->calculatePrice($item, $decimalPlaces);
-        $discountPrice = $this->calculateDiscount($item, $price, $decimalPlaces);
+        $discountPrice = $this->calculateDiscount($item, $price, $decimalPlaces, $crmItem);
 
         $data['productName']  = $item['name'];
         $data['initialPrice'] = $price;
@@ -112,12 +115,44 @@ class WC_Retailcrm_Order_Item extends WC_Retailcrm_Abstracts_Data
      * @param WC_Order_Item_Product $item
      * @param $price
      * @param int $decimalPlaces Price rounding from WC settings
-     *
+     * @param array|null $crmItem Current trade position in CRM
      * @return float|int
      */
-    private function calculateDiscount(WC_Order_Item_Product $item, $price, int $decimalPlaces)
-    {
-        $productPrice  = $item->get_total() ? $item->get_total() / $item->get_quantity() : 0;
+    private function calculateDiscount(
+        WC_Order_Item_Product $item,
+        $price,
+        int $decimalPlaces,
+        $crmItem = null
+    ) {
+        if ($crmItem) {
+            $loyaltyDiscount = 0;
+
+            foreach ($crmItem['discounts'] as $discount) {
+                if (in_array($discount['type'], ['bonus_charge', 'loyalty_level'])) {
+                    $loyaltyDiscount += $discount['amount'];
+
+                    break;
+                }
+            }
+
+            /**
+             * The loyalty program discount is calculated within the CRM system. It must be deleted during transfer to avoid duplication.
+             */
+            $productPrice = ($item->get_total() / $item->get_quantity()) + ($loyaltyDiscount / $crmItem['quantity']);
+
+            if ($this->cancelLoyalty) {
+                if ($item->get_total() + $loyaltyDiscount <= $item->get_subtotal()) {
+                    $item->set_total($item->get_total() + $loyaltyDiscount);
+                    $item->calculate_taxes();
+                    $item->save();
+                }
+
+                $productPrice = $item->get_total() / $item->get_quantity();
+            }
+        } else {
+            $productPrice  = $item->get_total() ? $item->get_total() / $item->get_quantity() : 0;
+        }
+
         $productTax    = $item->get_total_tax() ? $item->get_total_tax() / $item->get_quantity() : 0;
         $itemPrice     = $productPrice + $productTax;
 
@@ -127,7 +162,7 @@ class WC_Retailcrm_Order_Item extends WC_Retailcrm_Abstracts_Data
     /**
      * Reset item data.
      */
-    public function resetData()
+    public function resetData($cancelLoyalty)
     {
         $this->data = [
             'offer' => [],
@@ -135,5 +170,63 @@ class WC_Retailcrm_Order_Item extends WC_Retailcrm_Abstracts_Data
             'initialPrice' => 0.00,
             'quantity' => 0.00
         ];
+
+        $this->cancelLoyalty = $cancelLoyalty;
+    }
+
+    /**
+     * Checking whether the loyalty program discount needs to be canceled. (Changing the sales items in the order)
+     *
+     * @param array $wcItems
+     * @param array $crmItems
+     *
+     * @return bool
+     */
+    public function isCancelLoyalty($wcItems, $crmItems): bool
+    {
+        $loyaltyDiscount = 0;
+
+        /** If the number of sales items does not match */
+        if (count($wcItems) !== count($crmItems)) {
+            $this->cancelLoyalty = true;
+
+            return true;
+        }
+
+        foreach ($wcItems as $id => $item) {
+            /** If a trading position has been added/deleted */
+            if (!isset($crmItems[$id])) {
+                $this->cancelLoyalty = true;
+
+                return true;
+            }
+
+            /** If the quantity of goods in a trade item does not match */
+            if ($item->get_quantity() !== $crmItems[$id]['quantity']) {
+                $this->cancelLoyalty = true;
+
+                return true;
+            }
+
+            foreach ($crmItems[$id]['discounts'] as $discount) {
+                if (in_array($discount['type'], ['bonus_charge', 'loyalty_level'])) {
+                    $loyaltyDiscount += $discount['amount'];
+
+                    break;
+                }
+            }
+
+            /**
+             *If the sum of the trade item including discounts and loyalty program discount exceeds the cost without discounts.
+             * (Occurs when recalculating an order, deleting/adding coupons)
+             */
+            if (($item->get_total() + $loyaltyDiscount) > $item->get_subtotal()) {
+                $this->cancelLoyalty = true;
+
+                return true;
+            }
+        }
+
+        return false;
     }
 }
diff --git a/tests/loyalty/test-wc-retailcrm-client-v5.php b/tests/loyalty/test-wc-retailcrm-client-v5.php
index 9c5ad52..0db27a9 100644
--- a/tests/loyalty/test-wc-retailcrm-client-v5.php
+++ b/tests/loyalty/test-wc-retailcrm-client-v5.php
@@ -124,7 +124,7 @@ class WC_Retailcrm_Loyalty_Client_Test extends WC_Retailcrm_Test_Case_Helper
             ],
             [
                 'method' => 'cancelBonusOrder',
-                'parameters' => ['site', ['order']]
+                'parameters' => [['order']]
             ],
         ];
     }
diff --git a/tests/test-wc-retailcrm-loyalty.php b/tests/test-wc-retailcrm-loyalty.php
index d0e11b3..8e53969 100644
--- a/tests/test-wc-retailcrm-loyalty.php
+++ b/tests/test-wc-retailcrm-loyalty.php
@@ -330,6 +330,7 @@ class WC_Retailcrm_Loyalty_Test extends WC_Retailcrm_Test_Case_Helper
     {
         $products = DataLoyaltyRetailCrm::createProducts();
         $user = DataLoyaltyRetailcrm::createUsers()[0];
+        $discountLoyalty = 50;
 
         $wcOrder = wc_create_order([
             'status'        => null,
@@ -391,7 +392,7 @@ class WC_Retailcrm_Loyalty_Test extends WC_Retailcrm_Test_Case_Helper
         $this->setMockResponse($this->apiMock, 'applyBonusToOrder', $response);
         $this->loyalty = new WC_Retailcrm_Loyalty($this->apiMock, []);
 
-        $this->loyalty->applyLoyaltyDiscount($wcOrder, 50, $createdCrmOrderResponse);
+        $this->loyalty->applyLoyaltyDiscount($wcOrder, $createdCrmOrderResponse, $discountLoyalty);
 
         foreach ($wcOrder->get_items() as $id => $item) {
             $this->assertNotEquals($item->get_total(), $currentItemsPrice[$id]);
@@ -456,7 +457,7 @@ class WC_Retailcrm_Loyalty_Test extends WC_Retailcrm_Test_Case_Helper
             ]
         ];
 
-        $this->loyalty->applyLoyaltyDiscount($wcOrder, 0, $createdCrmOrderResponse);
+        $this->loyalty->applyLoyaltyDiscount($wcOrder, $createdCrmOrderResponse);
 
         foreach ($wcOrder->get_items() as $id => $item) {
             $this->assertNotEquals($item->get_total(), $currentItemsPrice[$id]);
diff --git a/tests/test-wc-retailcrm-orders.php b/tests/test-wc-retailcrm-orders.php
index d8527f1..5c606d4 100644
--- a/tests/test-wc-retailcrm-orders.php
+++ b/tests/test-wc-retailcrm-orders.php
@@ -642,9 +642,12 @@ class WC_Retailcrm_Orders_Test extends WC_Retailcrm_Test_Case_Helper
      */
     private function getRetailcrmOrders($retailcrm)
     {
+        $options = $this->getOptions();
+        unset($options['loyalty']);
+
         return new WC_Retailcrm_Orders(
             $retailcrm,
-            $this->getOptions(),
+            $options,
             new WC_Retailcrm_Order_Item($this->getOptions()),
             new WC_Retailcrm_Order_Address(),
             new WC_Retailcrm_Customers(
@@ -669,4 +672,3 @@ class WC_Retailcrm_Orders_Test extends WC_Retailcrm_Test_Case_Helper
                     ->getMock();
     }
 }
-