diff --git a/modules/optidigitalBidAdapter.js b/modules/optidigitalBidAdapter.js
index 4372aa830e6..64bfdb66d9f 100755
--- a/modules/optidigitalBidAdapter.js
+++ b/modules/optidigitalBidAdapter.js
@@ -7,6 +7,7 @@ const GVL_ID = 915;
 const ENDPOINT_URL = 'https://pbs.optidigital.com/bidder';
 const USER_SYNC_URL_IFRAME = 'https://scripts.opti-digital.com/js/presync.html?endpoint=optidigital';
 let CUR = 'USD';
+let isSynced = false;
 
 export const spec = {
   code: BIDDER_CODE,
@@ -136,21 +137,23 @@ export const spec = {
      */
   getUserSyncs: function(syncOptions, serverResponses, gdprConsent, uspConsent) {
     let syncurl = '';
+    if (!isSynced) {
+      // Attaching GDPR Consent Params in UserSync url
+      if (gdprConsent) {
+        syncurl += '&gdpr=' + (gdprConsent.gdprApplies ? 1 : 0);
+        syncurl += '&gdpr_consent=' + encodeURIComponent(gdprConsent.consentString || '');
+      }
+      if (uspConsent && uspConsent.consentString) {
+        syncurl += `&ccpa_consent=${uspConsent.consentString}`;
+      }
 
-    // Attaching GDPR Consent Params in UserSync url
-    if (gdprConsent) {
-      syncurl += '&gdpr=' + (gdprConsent.gdprApplies ? 1 : 0);
-      syncurl += '&gdpr_consent=' + encodeURIComponent(gdprConsent.consentString || '');
-    }
-    if (uspConsent && uspConsent.consentString) {
-      syncurl += `&ccpa_consent=${uspConsent.consentString}`;
-    }
-
-    if (syncOptions.iframeEnabled) {
-      return [{
-        type: 'iframe',
-        url: USER_SYNC_URL_IFRAME + syncurl
-      }];
+      if (syncOptions.iframeEnabled) {
+        isSynced = true;
+        return [{
+          type: 'iframe',
+          url: USER_SYNC_URL_IFRAME + syncurl
+        }];
+      }
     }
   },
 };
@@ -218,4 +221,8 @@ function _getFloor (bid, sizes, currency) {
   return floor !== null ? floor : bid.params.floor;
 }
 
+export function resetSync() {
+  isSynced = false;
+}
+
 registerBidder(spec);
diff --git a/test/spec/modules/optidigitalBidAdapter_spec.js b/test/spec/modules/optidigitalBidAdapter_spec.js
index 8c222650f7e..557f61ddd47 100755
--- a/test/spec/modules/optidigitalBidAdapter_spec.js
+++ b/test/spec/modules/optidigitalBidAdapter_spec.js
@@ -1,5 +1,5 @@
 import { expect } from 'chai';
-import { spec } from 'modules/optidigitalBidAdapter.js';
+import { spec, resetSync } from 'modules/optidigitalBidAdapter.js';
 import * as utils from 'src/utils.js';
 
 const ENDPOINT = 'https://pbs.optidigital.com/bidder';
@@ -497,6 +497,7 @@ describe('optidigitalAdapterTests', function () {
     let test;
     beforeEach(function () {
       test = sinon.sandbox.create();
+      resetSync();
     });
     afterEach(function() {
       test.restore();
@@ -508,16 +509,22 @@ describe('optidigitalAdapterTests', function () {
       }]);
     });
 
-    it('should return appropriate URL', function() {
+    it('should return appropriate URL with GDPR equals to 1 and GDPR consent', function() {
       expect(spec.getUserSyncs({ iframeEnabled: true }, {}, {gdprApplies: true, consentString: 'foo'}, undefined)).to.deep.equal([{
         type: 'iframe', url: `${syncurlIframe}&gdpr=1&gdpr_consent=foo`
       }]);
+    });
+    it('should return appropriate URL with GDPR equals to 0 and GDPR consent', function() {
       expect(spec.getUserSyncs({ iframeEnabled: true }, {}, {gdprApplies: false, consentString: 'foo'}, undefined)).to.deep.equal([{
         type: 'iframe', url: `${syncurlIframe}&gdpr=0&gdpr_consent=foo`
       }]);
+    });
+    it('should return appropriate URL with GDPR equals to 1 and no consent', function() {
       expect(spec.getUserSyncs({ iframeEnabled: true }, {}, {gdprApplies: true, consentString: undefined}, undefined)).to.deep.equal([{
         type: 'iframe', url: `${syncurlIframe}&gdpr=1&gdpr_consent=`
       }]);
+    });
+    it('should return appropriate URL with GDPR equals to 1, GDPR consent and CCPA consent', function() {
       expect(spec.getUserSyncs({ iframeEnabled: true }, {}, {gdprApplies: true, consentString: 'foo'}, {consentString: 'fooUsp'})).to.deep.equal([{
         type: 'iframe', url: `${syncurlIframe}&gdpr=1&gdpr_consent=foo&ccpa_consent=fooUsp`
       }]);