diff --git a/modules/nextMillenniumBidAdapter.js b/modules/nextMillenniumBidAdapter.js
index cf732d343e5..b5d0e15d078 100644
--- a/modules/nextMillenniumBidAdapter.js
+++ b/modules/nextMillenniumBidAdapter.js
@@ -1,4 +1,5 @@
 import {
+  isArray,
   _each,
   createTrackPixelHtml,
   deepAccess,
@@ -24,7 +25,6 @@ const BIDDER_CODE = 'nextMillennium';
 const ENDPOINT = 'https://pbs.nextmillmedia.com/openrtb2/auction';
 const TEST_ENDPOINT = 'https://test.pbs.nextmillmedia.com/openrtb2/auction';
 const REPORT_ENDPOINT = 'https://report2.hb.brainlyads.com/statistics/metric';
-const SYNC_ENDPOINT = 'https://cookies.nextmillmedia.com/sync?';
 const TIME_TO_LIVE = 360;
 const VIDEO_PARAMS = [
   'api', 'linearity', 'maxduration', 'mimes', 'minduration', 'placement',
@@ -208,20 +208,27 @@ export const spec = {
 
   getUserSyncs: function (syncOptions, responses, gdprConsent, uspConsent) {
     const pixels = [];
-    let syncUrl = SYNC_ENDPOINT;
 
-    if (gdprConsent && gdprConsent.gdprApplies) {
-      syncUrl += 'gdpr=1&gdpr_consent=' + gdprConsent.consentString;
-    }
-    if (uspConsent) {
-      syncUrl += 'us_privacy=' + uspConsent;
-    }
+    if (isArray(responses)) {
+      responses.forEach(response => {
+        if (syncOptions.pixelEnabled) {
+          deepAccess(response, 'body.ext.sync.image', []).forEach(imgUrl => {
+            pixels.push({
+              type: 'image',
+              url: replaceUsersyncMacros(imgUrl, gdprConsent, uspConsent)
+            });
+          })
+        }
 
-    if (syncOptions.iframeEnabled) {
-      pixels.push({type: 'iframe', url: syncUrl + 'type=iframe'});
-    }
-    if (syncOptions.pixelEnabled) {
-      pixels.push({type: 'image', url: syncUrl + 'type=image'});
+        if (syncOptions.iframeEnabled) {
+          deepAccess(response, 'body.ext.sync.iframe', []).forEach(iframeUrl => {
+            pixels.push({
+              type: 'iframe',
+              url: replaceUsersyncMacros(iframeUrl, gdprConsent, uspConsent)
+            });
+          })
+        }
+      })
     }
 
     return pixels;
@@ -263,6 +270,18 @@ export const spec = {
   },
 };
 
+function replaceUsersyncMacros(url, gdprConsent, uspConsent) {
+  const { consentString, gdprApplies } = gdprConsent;
+
+  return url.replace(
+    '{{.GDPR}}', Number(gdprApplies)
+  ).replace(
+    '{{.GDPRConsent}}', consentString
+  ).replace(
+    '{{.USPrivacy}}', uspConsent
+  );
+};
+
 function getAdEl(bid) {
   // best way I could think of to get El, is by matching adUnitCode to google slots...
   const slot = window.googletag && window.googletag.pubads && window.googletag.pubads().getSlots().find(slot => slot.getAdUnitPath() === bid.adUnitCode);
diff --git a/test/spec/modules/nextMillenniumBidAdapter_spec.js b/test/spec/modules/nextMillenniumBidAdapter_spec.js
index 3094c1349f7..90f0d8ae15c 100644
--- a/test/spec/modules/nextMillenniumBidAdapter_spec.js
+++ b/test/spec/modules/nextMillenniumBidAdapter_spec.js
@@ -28,6 +28,34 @@ describe('nextMillenniumBidAdapterTests', function() {
     }
   ];
 
+  const serverResponse = {
+    body: {
+      id: 'f7b3d2da-e762-410c-b069-424f92c4c4b2',
+      seatbid: [
+        {
+          bid: [
+            {
+              id: '7457329903666272789',
+              price: 0.5,
+              adm: 'Hello! It\'s a test ad!',
+              adid: '96846035',
+              adomain: ['test.addomain.com'],
+              w: 300,
+              h: 250
+            }
+          ]
+        }
+      ],
+      cur: 'USD',
+      ext: {
+        sync: {
+          image: ['urlA'],
+          iframe: ['urlB'],
+        }
+      }
+    }
+  };
+
   const bidRequestDataGI = [
     {
       adUnitCode: 'test-banner-gi',
@@ -96,6 +124,24 @@ describe('nextMillenniumBidAdapterTests', function() {
     expect(JSON.parse(request[0].data).regs.ext.gdpr).to.equal(1);
   });
 
+  it('Test getUserSyncs function', function () {
+    const syncOptions = {
+      'iframeEnabled': false,
+      'pixelEnabled': true
+    }
+    let userSync = spec.getUserSyncs(syncOptions, [serverResponse], bidRequestData[0].gdprConsent, bidRequestData[0].uspConsent);
+    expect(userSync).to.be.an('array').with.lengthOf(1);
+    expect(userSync[0].type).to.equal('image');
+    expect(userSync[0].url).to.equal('urlA');
+
+    syncOptions.iframeEnabled = true;
+    syncOptions.pixelEnabled = false;
+    userSync = spec.getUserSyncs(syncOptions, [serverResponse], bidRequestData[0].gdprConsent, bidRequestData[0].uspConsent);
+    expect(userSync).to.be.an('array').with.lengthOf(1);
+    expect(userSync[0].type).to.equal('iframe');
+    expect(userSync[0].url).to.equal('urlB');
+  });
+
   it('Request params check without GDPR Consent', function () {
     delete bidRequestData[0].gdprConsent
     const request = spec.buildRequests(bidRequestData, bidRequestData[0]);
@@ -137,51 +183,16 @@ describe('nextMillenniumBidAdapterTests', function() {
   it('Check if imp object was added', function() {
     const request = spec.buildRequests(bidRequestData)
     expect(JSON.parse(request[0].data).imp).to.be.an('array')
-  })
+  });
 
   it('Check if imp prebid stored id is correct', function() {
     const request = spec.buildRequests(bidRequestData)
     const requestData = JSON.parse(request[0].data);
     const storedReqId = requestData.ext.prebid.storedrequest.id;
     expect(requestData.imp[0].ext.prebid.storedrequest.id).to.equal(storedReqId)
-  })
-
-  it('Test getUserSyncs function', function () {
-    const syncOptions = {
-      'iframeEnabled': false,
-      'pixelEnabled': true
-    }
-    const userSync = spec.getUserSyncs(syncOptions);
-    expect(userSync).to.be.an('array').with.lengthOf(1);
-    expect(userSync[0].type).to.exist;
-    expect(userSync[0].url).to.exist;
-    expect(userSync[0].type).to.be.equal('image');
-    expect(userSync[0].url).to.be.equal('https://cookies.nextmillmedia.com/sync?type=image');
   });
 
   it('validate_response_params', function() {
-    const serverResponse = {
-      body: {
-        id: 'f7b3d2da-e762-410c-b069-424f92c4c4b2',
-        seatbid: [
-          {
-            bid: [
-              {
-                id: '7457329903666272789',
-                price: 0.5,
-                adm: 'Hello! It\'s a test ad!',
-                adid: '96846035',
-                adomain: ['test.addomain.com'],
-                w: 300,
-                h: 250
-              }
-            ]
-          }
-        ],
-        cur: 'USD'
-      }
-    };
-
     let bids = spec.interpretResponse(serverResponse, bidRequestData[0]);
     expect(bids).to.have.lengthOf(1);