diff --git a/modules/gridBidAdapter.js b/modules/gridBidAdapter.js
index 9c63e871356..8285b3308b7 100644
--- a/modules/gridBidAdapter.js
+++ b/modules/gridBidAdapter.js
@@ -26,10 +26,9 @@ const RENDERER_URL = 'https://acdn.adnxs.com/video/outstream/ANOutstreamVideo.js
 export const storage = getStorageManager({ bidderCode: BIDDER_CODE });
 
 const LOG_ERROR_MESS = {
-  noAuid: 'Bid from response has no auid parameter - ',
+  noAdid: 'Bid from response has no adid parameter - ',
   noAdm: 'Bid from response has no adm parameter - ',
   noBid: 'Array of bid objects is empty',
-  noPlacementCode: 'Can\'t find in requested bids the bid with auid - ',
   emptyUids: 'Uids should be not empty',
   emptySeatbid: 'Seatbid array from response has empty item',
   emptyResponse: 'Response is empty',
@@ -507,7 +506,7 @@ function _getBidFromResponse(respItem) {
 function _addBidResponse(serverBid, bidRequest, bidResponses, RendererConst, bidderCode) {
   if (!serverBid) return;
   let errorMessage;
-  if (!serverBid.auid) errorMessage = LOG_ERROR_MESS.noAuid + JSON.stringify(serverBid);
+  if (!serverBid.adid) errorMessage = LOG_ERROR_MESS.noAdid + JSON.stringify(serverBid);
   if (!errorMessage && !serverBid.adm && !serverBid.nurl) errorMessage = LOG_ERROR_MESS.noAdm + JSON.stringify(serverBid);
   else {
     const bidObject = bidRequest.bidsMap ? bidRequest.bidsMap[serverBid.impid] : bidRequest.bidObject;
@@ -518,7 +517,7 @@ function _addBidResponse(serverBid, bidRequest, bidResponses, RendererConst, bid
         cpm: serverBid.price,
         width: serverBid.w,
         height: serverBid.h,
-        creativeId: serverBid.auid, // bid.bidId
+        creativeId: serverBid.adid,
         currency: 'USD',
         netRevenue: true,
         ttl: TIME_TO_LIVE,
diff --git a/test/spec/modules/gridBidAdapter_spec.js b/test/spec/modules/gridBidAdapter_spec.js
index 4a1148bf377..c1edff46dc0 100644
--- a/test/spec/modules/gridBidAdapter_spec.js
+++ b/test/spec/modules/gridBidAdapter_spec.js
@@ -911,11 +911,11 @@ describe('TheMediaGrid Adapter', function () {
 
   describe('interpretResponse', function () {
     const responses = [
-      {'bid': [{'impid': '659423fff799cb', 'price': 1.15, 'adm': '<div>test content 1</div>', 'auid': 1, 'h': 250, 'w': 300, 'dealid': 11}], 'seat': '1'},
-      {'bid': [{'impid': '4dff80cc4ee346', 'price': 0.5, 'adm': '<div>test content 2</div>', 'auid': 2, 'h': 600, 'w': 300}], 'seat': '1'},
-      {'bid': [{'impid': '5703af74d0472a', 'price': 0.15, 'adm': '<div>test content 3</div>', 'auid': 1, 'h': 90, 'w': 728}], 'seat': '1'},
-      {'bid': [{'impid': '2344da98f78b42', 'price': 0, 'auid': 3, 'h': 250, 'w': 300}], 'seat': '1'},
-      {'bid': [{'price': 0, 'adm': '<div>test content 5</div>', 'h': 250, 'w': 300}], 'seat': '1'},
+      {'bid': [{'impid': '659423fff799cb', 'adid': '13_14_4353', 'price': 1.15, 'adm': '<div>test content 1</div>', 'auid': 1, 'h': 250, 'w': 300, 'dealid': 11}], 'seat': '1'},
+      {'bid': [{'impid': '4dff80cc4ee346', 'adid': '13_15_6454', 'price': 0.5, 'adm': '<div>test content 2</div>', 'auid': 2, 'h': 600, 'w': 300}], 'seat': '1'},
+      {'bid': [{'impid': '5703af74d0472a', 'adid': '13_16_7654', 'price': 0.15, 'adm': '<div>test content 3</div>', 'auid': 1, 'h': 90, 'w': 728}], 'seat': '1'},
+      {'bid': [{'impid': '2344da98f78b42', 'adid': '13_17_5433', 'price': 0, 'auid': 3, 'h': 250, 'w': 300}], 'seat': '1'},
+      {'bid': [{'price': 0, 'adid': '13_18_34645', 'adm': '<div>test content 5</div>', 'h': 250, 'w': 300}], 'seat': '1'},
       undefined,
       {'bid': [], 'seat': '1'},
       {'seat': '1'},
@@ -940,7 +940,7 @@ describe('TheMediaGrid Adapter', function () {
         {
           'requestId': '659423fff799cb',
           'cpm': 1.15,
-          'creativeId': 1,
+          'creativeId': '13_14_4353',
           'dealId': 11,
           'width': 300,
           'height': 250,
@@ -1000,7 +1000,7 @@ describe('TheMediaGrid Adapter', function () {
         {
           'requestId': '659423fff799cb',
           'cpm': 1.15,
-          'creativeId': 1,
+          'creativeId': '13_14_4353',
           'dealId': 11,
           'width': 300,
           'height': 250,
@@ -1016,7 +1016,7 @@ describe('TheMediaGrid Adapter', function () {
         {
           'requestId': '4dff80cc4ee346',
           'cpm': 0.5,
-          'creativeId': 2,
+          'creativeId': '13_15_6454',
           'dealId': undefined,
           'width': 300,
           'height': 600,
@@ -1032,7 +1032,7 @@ describe('TheMediaGrid Adapter', function () {
         {
           'requestId': '5703af74d0472a',
           'cpm': 0.15,
-          'creativeId': 1,
+          'creativeId': '13_16_7654',
           'dealId': undefined,
           'width': 728,
           'height': 90,
@@ -1135,18 +1135,18 @@ describe('TheMediaGrid Adapter', function () {
         }
       ];
       const response = [
-        {'bid': [{'impid': '659423fff799cb', 'price': 1.15, 'adm': '<VAST version=\"3.0\">\n<Ad id=\"21341234\"><\/Ad>\n<\/VAST>', 'auid': 11, content_type: 'video', w: 300, h: 600}], 'seat': '2'},
-        {'bid': [{'impid': '2bc598e42b6a', 'price': 1.00, 'adm': '<VAST version=\"3.0\">\n<Ad id=\"21331274\"><\/Ad>\n<\/VAST>', 'auid': 12, content_type: 'video'}], 'seat': '2'},
-        {'bid': [{'impid': '23312a43bc42', 'price': 2.00, 'nurl': 'https://some_test_vast_url.com', 'auid': 13, content_type: 'video', 'adomain': ['example.com'], w: 300, h: 600}], 'seat': '2'},
-        {'bid': [{'impid': '112432ab4f34', 'price': 1.80, 'adm': '<VAST version=\"3.0\">\n<Ad id=\"32115432\"><\/Ad>\n<\/VAST>', 'nurl': 'https://wrong_url.com', 'auid': 14, content_type: 'video', 'adomain': ['example.com'], w: 300, h: 600}], 'seat': '2'},
-        {'bid': [{'impid': 'a74b342f8cd', 'price': 1.50, 'nurl': '', 'auid': 15, content_type: 'video'}], 'seat': '2'}
+        {'bid': [{'impid': '659423fff799cb', 'adid': '35_56_6454', 'price': 1.15, 'adm': '<VAST version=\"3.0\">\n<Ad id=\"21341234\"><\/Ad>\n<\/VAST>', 'auid': 11, content_type: 'video', w: 300, h: 600}], 'seat': '2'},
+        {'bid': [{'impid': '2bc598e42b6a', 'adid': '35_57_2344', 'price': 1.00, 'adm': '<VAST version=\"3.0\">\n<Ad id=\"21331274\"><\/Ad>\n<\/VAST>', content_type: 'video'}], 'seat': '2'},
+        {'bid': [{'impid': '23312a43bc42', 'adid': '35_58_5345', 'price': 2.00, 'nurl': 'https://some_test_vast_url.com', 'auid': 13, content_type: 'video', 'adomain': ['example.com'], w: 300, h: 600}], 'seat': '2'},
+        {'bid': [{'impid': '112432ab4f34', 'adid': '35_59_56756', 'price': 1.80, 'adm': '<VAST version=\"3.0\">\n<Ad id=\"32115432\"><\/Ad>\n<\/VAST>', 'nurl': 'https://wrong_url.com', 'auid': 14, content_type: 'video', 'adomain': ['example.com'], w: 300, h: 600}], 'seat': '2'},
+        {'bid': [{'impid': 'a74b342f8cd', 'adid': '35_60_523452', 'price': 1.50, 'nurl': '', 'auid': 15, content_type: 'video'}], 'seat': '2'}
       ];
       const [request] = spec.buildRequests(bidRequests);
       const expectedResponse = [
         {
           'requestId': '659423fff799cb',
           'cpm': 1.15,
-          'creativeId': 11,
+          'creativeId': '35_56_6454',
           'dealId': undefined,
           'width': 300,
           'height': 600,
@@ -1165,7 +1165,7 @@ describe('TheMediaGrid Adapter', function () {
         {
           'requestId': '2bc598e42b6a',
           'cpm': 1.00,
-          'creativeId': 12,
+          'creativeId': '35_57_2344',
           'dealId': undefined,
           'width': undefined,
           'height': undefined,
@@ -1184,7 +1184,7 @@ describe('TheMediaGrid Adapter', function () {
         {
           'requestId': '23312a43bc42',
           'cpm': 2.00,
-          'creativeId': 13,
+          'creativeId': '35_58_5345',
           'dealId': undefined,
           'width': 300,
           'height': 600,
@@ -1200,7 +1200,7 @@ describe('TheMediaGrid Adapter', function () {
         {
           'requestId': '112432ab4f34',
           'cpm': 1.80,
-          'creativeId': 14,
+          'creativeId': '35_59_56756',
           'dealId': undefined,
           'width': 300,
           'height': 600,
@@ -1265,11 +1265,11 @@ describe('TheMediaGrid Adapter', function () {
 
     it('complicated case', function () {
       const fullResponse = [
-        {'bid': [{'impid': '2164be6358b9', 'price': 1.15, 'adm': '<div>test content 1</div>', 'auid': 1, 'h': 250, 'w': 300, dealid: 11}], 'seat': '1'},
-        {'bid': [{'impid': '4e111f1b66e4', 'price': 0.5, 'adm': '<div>test content 2</div>', 'auid': 2, 'h': 600, 'w': 300, dealid: 12}], 'seat': '1'},
-        {'bid': [{'impid': '26d6f897b516', 'price': 0.15, 'adm': '<div>test content 3</div>', 'auid': 1, 'h': 90, 'w': 728}], 'seat': '1'},
-        {'bid': [{'impid': '326bde7fbf69', 'price': 0.15, 'adm': '<div>test content 4</div>', 'auid': 1, 'h': 600, 'w': 300}], 'seat': '1'},
-        {'bid': [{'impid': '2234f233b22a', 'price': 0.5, 'adm': '<div>test content 5</div>', 'auid': 2, 'h': 600, 'w': 350}], 'seat': '1'},
+        {'bid': [{'impid': '2164be6358b9', 'adid': '32_52_7543', 'price': 1.15, 'adm': '<div>test content 1</div>', 'auid': 1, 'h': 250, 'w': 300, dealid: 11}], 'seat': '1'},
+        {'bid': [{'impid': '4e111f1b66e4', 'adid': '32_54_4535', 'price': 0.5, 'adm': '<div>test content 2</div>', 'auid': 2, 'h': 600, 'w': 300, dealid: 12}], 'seat': '1'},
+        {'bid': [{'impid': '26d6f897b516', 'adid': '32_53_75467', 'price': 0.15, 'adm': '<div>test content 3</div>', 'auid': 1, 'h': 90, 'w': 728}], 'seat': '1'},
+        {'bid': [{'impid': '326bde7fbf69', 'adid': '32_54_12342', 'price': 0.15, 'adm': '<div>test content 4</div>', 'auid': 1, 'h': 600, 'w': 300}], 'seat': '1'},
+        {'bid': [{'impid': '2234f233b22a', 'adid': '32_55_987686', 'price': 0.5, 'adm': '<div>test content 5</div>', 'auid': 2, 'h': 600, 'w': 350}], 'seat': '1'},
       ];
       const bidRequests = [
         {
@@ -1333,7 +1333,7 @@ describe('TheMediaGrid Adapter', function () {
         {
           'requestId': '2164be6358b9',
           'cpm': 1.15,
-          'creativeId': 1,
+          'creativeId': '32_52_7543',
           'dealId': 11,
           'width': 300,
           'height': 250,
@@ -1349,7 +1349,7 @@ describe('TheMediaGrid Adapter', function () {
         {
           'requestId': '4e111f1b66e4',
           'cpm': 0.5,
-          'creativeId': 2,
+          'creativeId': '32_54_4535',
           'dealId': 12,
           'width': 300,
           'height': 600,
@@ -1365,7 +1365,7 @@ describe('TheMediaGrid Adapter', function () {
         {
           'requestId': '26d6f897b516',
           'cpm': 0.15,
-          'creativeId': 1,
+          'creativeId': '32_53_75467',
           'dealId': undefined,
           'width': 728,
           'height': 90,
@@ -1381,7 +1381,7 @@ describe('TheMediaGrid Adapter', function () {
         {
           'requestId': '326bde7fbf69',
           'cpm': 0.15,
-          'creativeId': 1,
+          'creativeId': '32_54_12342',
           'dealId': undefined,
           'width': 300,
           'height': 600,
@@ -1421,6 +1421,7 @@ describe('TheMediaGrid Adapter', function () {
             'price': 1.15,
             'adm': '<div>test content 1</div>',
             'auid': 1,
+            'adid': '234_6454_3453',
             'h': 250,
             'w': 300,
             'dealid': 11,
@@ -1440,7 +1441,7 @@ describe('TheMediaGrid Adapter', function () {
         {
           'requestId': '26d6f897b516',
           'cpm': 1.15,
-          'creativeId': 1,
+          'creativeId': '234_6454_3453',
           'dealId': 11,
           'width': 300,
           'height': 250,