diff --git a/src/v0/destinations/awin/utils.js b/src/v0/destinations/awin/utils.js
index f0daea9b99..e0a3536f2c 100644
--- a/src/v0/destinations/awin/utils.js
+++ b/src/v0/destinations/awin/utils.js
@@ -30,15 +30,39 @@ const areAllValuesDefined = (obj) =>
   lodash.every(lodash.values(obj), (value) => !lodash.isUndefined(value));
 
 const buildProductPayloadString = (payload) => {
-  // URL-encode each value, and join back with the same key.
   const encodedPayload = Object.entries(payload).reduce((acc, [key, value]) => {
-    // Encode each value. Assuming that all values are either strings or can be
-    // safely converted to strings.
     acc[key] = encodeURIComponent(value);
     return acc;
   }, {});
 
-  return `AW:P|${encodedPayload.advertiserId}|${encodedPayload.orderReference}|${encodedPayload.productId}|${encodedPayload.productName}|${encodedPayload.productItemPrice}|${encodedPayload.productQuantity}|${encodedPayload.productSku}|${encodedPayload.commissionGroupCode}|${encodedPayload.productCategory}`;
+  const {
+    advertiserId,
+    orderReference,
+    productId,
+    productName,
+    productItemPrice,
+    productQuantity,
+    productSku,
+    commissionGroupCode,
+    productCategory,
+    ...customProperties
+  } = encodedPayload;
+
+  // Build the base string without custom properties
+  let baseString = `AW:P|${advertiserId}|${orderReference}|${productId}|${productName}|${productItemPrice}|${productQuantity}|${productSku}|${commissionGroupCode}|${productCategory}`;
+
+  // Check if there are any custom properties
+  if (Object.keys(customProperties).length > 0) {
+    // Map custom properties to strings with indexed keys, starting from 1
+    const customPropsString = Object.values(customProperties)
+      .map((value, index) => `&p${index + 1}=${value}`)
+      .join('');
+    // Append the custom properties to the base string
+    baseString += customPropsString;
+  }
+
+  // Return the final payload string
+  return baseString;
 };
 
 // ref: https://wiki.awin.com/index.php/Advertiser_Tracking_Guide/Product_Level_Tracking#PLT_Via_Conversion_Pixel
@@ -52,6 +76,9 @@ const trackProduct = (properties, advertiserId, commissionParts) => {
     const productsArray = properties.products;
     let productIndex = 0;
     productsArray.forEach((product) => {
+      // eslint-disable-next-line @typescript-eslint/naming-convention
+      const { product_id, productId, name, price, quantity, sku, category, ...customProperties } =
+        product;
       const productPayloadNew = {
         advertiserId,
         orderReference:
@@ -59,13 +86,14 @@ const trackProduct = (properties, advertiserId, commissionParts) => {
           properties.orderId ||
           properties.orderReference ||
           properties.order_reference,
-        productId: product.product_id || product.productId,
-        productName: product.name,
-        productItemPrice: product.price,
-        productQuantity: product.quantity,
-        productSku: product.sku || '',
+        productId: product_id || productId,
+        productName: name,
+        productItemPrice: price,
+        productQuantity: quantity,
+        productSku: sku || '',
         commissionGroupCode: commissionParts || 'DEFAULT',
-        productCategory: product.category || '',
+        productCategory: category || '',
+        ...customProperties,
       };
       if (areAllValuesDefined(productPayloadNew)) {
         transformedProductInfoObj[`bd[${productIndex}]`] =
diff --git a/test/integrations/destinations/awin/data.ts b/test/integrations/destinations/awin/data.ts
index 8ca294b5fb..239875f9da 100644
--- a/test/integrations/destinations/awin/data.ts
+++ b/test/integrations/destinations/awin/data.ts
@@ -1158,4 +1158,167 @@ export const data = [
       },
     },
   },
+  {
+    name: 'awin',
+    description: 'Track call- with product array and custom properties',
+    feature: 'processor',
+    module: 'destination',
+    version: 'v0',
+    input: {
+      request: {
+        body: [
+          {
+            destination: {
+              Config: {
+                advertiserId: '1234',
+                eventsToTrack: [
+                  {
+                    eventName: 'abc',
+                  },
+                  {
+                    eventName: 'prop2',
+                  },
+                  {
+                    eventName: 'prop3',
+                  },
+                ],
+              },
+            },
+            message: {
+              type: 'track',
+              event: 'prop2',
+              sentAt: '2022-01-20T13:39:21.033Z',
+              userId: 'user123456001',
+              channel: 'web',
+              properties: {
+                currency: 'INR',
+                voucherCode: '1bcu1',
+                amount: 500,
+                commissionGroup: 'sales',
+                cks: 'new',
+                testMode: '1',
+                order_id: 'QW123',
+                products: [
+                  {
+                    product_id: '123',
+                    name: 'Product 1',
+                    price: 10,
+                    quantity: 1,
+                    sku: undefined,
+                    category: 'Category 1',
+                    customProp1: 'customVal1',
+                    customProp2: 'customVal2',
+                    customProp3: 'customVal3',
+                  },
+                  {
+                    product_id: '456',
+                    name: 'Product 2',
+                    price: 20,
+                    quantity: 2,
+                    sku: 'SKU456',
+                    category: undefined,
+                  },
+                ],
+              },
+              context: {
+                os: {
+                  name: '',
+                  version: '',
+                },
+                app: {
+                  name: 'RudderLabs JavaScript SDK',
+                  build: '1.0.0',
+                  version: '1.2.20',
+                  namespace: 'com.rudderlabs.javascript',
+                },
+                page: {
+                  url: 'http://127.0.0.1:7307/Testing/App_for_LaunchDarkly/ourSdk.html',
+                  path: '/Testing/App_for_LaunchDarkly/ourSdk.html',
+                  title: 'Document',
+                  search: '',
+                  tab_url: 'http://127.0.0.1:7307/Testing/App_for_LaunchDarkly/ourSdk.html',
+                  referrer: 'http://127.0.0.1:7307/Testing/App_for_LaunchDarkly/',
+                  initial_referrer: '$direct',
+                  referring_domain: '127.0.0.1:7307',
+                  initial_referring_domain: '',
+                },
+                locale: 'en-US',
+                screen: {
+                  width: 1440,
+                  height: 900,
+                  density: 2,
+                  innerWidth: 536,
+                  innerHeight: 689,
+                },
+                traits: {
+                  city: 'Pune',
+                  name: 'First User',
+                  email: 'firstUser@testmail.com',
+                  title: 'VP',
+                  gender: 'female',
+                  avatar: 'https://i.pravatar.cc/300',
+                },
+                library: {
+                  name: 'RudderLabs JavaScript SDK',
+                  version: '1.2.20',
+                },
+                campaign: {},
+                userAgent:
+                  'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36',
+              },
+              rudderId: '553b5522-c575-40a7-8072-9741c5f9a647',
+              messageId: '831f1fa5-de84-4f22-880a-4c3f23fc3f04',
+              anonymousId: 'bf412108-0357-4330-b119-7305e767823c',
+              integrations: {
+                All: true,
+              },
+              originalTimestamp: '2022-01-20T13:39:21.032Z',
+            },
+          },
+        ],
+        method: 'POST',
+      },
+    },
+    output: {
+      response: {
+        status: 200,
+        body: [
+          {
+            output: {
+              version: '1',
+              type: 'REST',
+              method: 'POST',
+              endpoint: 'https://www.awin1.com/sread.php',
+              headers: {},
+              params: {
+                amount: 500,
+                ch: 'aw',
+                parts: 'sales:500',
+                cr: 'INR',
+                tt: 'ss',
+                tv: '2',
+                vc: '1bcu1',
+                cks: 'new',
+                merchant: '1234',
+                testmode: '1',
+                ref: 'QW123',
+                'bd[0]':
+                  'AW:P|1234|QW123|123|Product%201|10|1||sales%3A500|Category%201&p1=customVal1&p2=customVal2&p3=customVal3',
+                'bd[1]': 'AW:P|1234|QW123|456|Product%202|20|2|SKU456|sales%3A500|',
+              },
+              body: {
+                JSON: {},
+                JSON_ARRAY: {},
+                XML: {},
+                FORM: {},
+              },
+              files: {},
+              userId: '',
+            },
+            statusCode: 200,
+          },
+        ],
+      },
+    },
+  },
 ];