diff --git a/modules/33acrossBidAdapter.js b/modules/33acrossBidAdapter.js
index 3c2c364fafd..3d72986230e 100644
--- a/modules/33acrossBidAdapter.js
+++ b/modules/33acrossBidAdapter.js
@@ -17,6 +17,7 @@ import { ortbConverter } from '../libraries/ortbConverter/converter.js';
 import { percentInView } from '../libraries/percentInView/percentInView.js';
 import {getMinSize} from '../libraries/sizeUtils/sizeUtils.js';
 import {isIframe} from '../libraries/omsUtils/index.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 // **************************** UTILS ************************** //
 const BIDDER_CODE = '33across';
@@ -373,7 +374,7 @@ function _getProduct(bidRequest) {
 // BUILD REQUESTS: BANNER
 function _buildBannerORTB(bidRequest) {
   const bannerAdUnit = deepAccess(bidRequest, 'mediaTypes.banner', {});
-  const element = _getAdSlotHTMLElement(bidRequest.adUnitCode);
+  const element = _getAdSlotHTMLElement(bidRequest);
 
   const sizes = _transformSizes(bannerAdUnit.sizes);
 
@@ -478,6 +479,7 @@ function _getViewability(element, topWin, { w, h } = {}) {
     : 0;
 }
 
+// TODO use utils/adUnits once that's unified in 11
 function _mapAdUnitPathToElementId(adUnitCode) {
   if (isGptPubadsDefined()) {
     // eslint-disable-next-line no-undef
@@ -500,9 +502,9 @@ function _mapAdUnitPathToElementId(adUnitCode) {
   return null;
 }
 
-function _getAdSlotHTMLElement(adUnitCode) {
-  return document.getElementById(adUnitCode) ||
-    document.getElementById(_mapAdUnitPathToElementId(adUnitCode));
+function _getAdSlotHTMLElement(bidRequest) {
+  return getAdUnitElement(bidRequest) ||
+    document.getElementById(_mapAdUnitPathToElementId(bidRequest.adUnitCode));
 }
 
 /**
diff --git a/modules/adagioBidAdapter.js b/modules/adagioBidAdapter.js
index 9d04e166600..6de60552a22 100644
--- a/modules/adagioBidAdapter.js
+++ b/modules/adagioBidAdapter.js
@@ -25,6 +25,7 @@ import { getGptSlotInfoForAdUnitCode } from '../libraries/gptUtils/gptUtils.js';
 import { registerBidder } from '../src/adapters/bidderFactory.js';
 import { userSync } from '../src/userSync.js';
 import { validateOrtbFields } from '../src/prebid.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 const BIDDER_CODE = 'adagio';
 const LOG_PREFIX = 'Adagio:';
@@ -466,7 +467,7 @@ const OUTSTREAM_RENDERER = {
       return;
     }
 
-    const el = document.getElementById(bid.adUnitCode);
+    const el = getAdUnitElement(bid);
 
     renderer.bootstrap(config, el, override);
   },
diff --git a/modules/adagioRtdProvider.js b/modules/adagioRtdProvider.js
index dfc6361234e..201d6d0e5e2 100644
--- a/modules/adagioRtdProvider.js
+++ b/modules/adagioRtdProvider.js
@@ -495,6 +495,7 @@ function getElementFromTopWindow(element, currentWindow) {
 };
 
 function getSlotPosition(divId) {
+  // TODO: this should use getAdUnitElement
   if (!isSafeFrameWindow() && !canAccessWindowTop()) {
     return '';
   }
diff --git a/modules/adnuntiusAnalyticsAdapter.js b/modules/adnuntiusAnalyticsAdapter.js
index 6de06332e3e..1bfbdc1e68c 100644
--- a/modules/adnuntiusAnalyticsAdapter.js
+++ b/modules/adnuntiusAnalyticsAdapter.js
@@ -3,6 +3,7 @@ import {ajax} from '../src/ajax.js';
 import adapter from '../libraries/analyticsAdapter/AnalyticsAdapter.js';
 import { EVENTS } from '../src/constants.js';
 import adapterManager from '../src/adapterManager.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 const URL = 'https://analytics.adnuntius.com/prebid';
 const REQUEST_SENT = 1;
@@ -36,7 +37,7 @@ const adnAnalyticsAdapter = Object.assign(adapter({url: '', analyticsType: 'endp
           cache.auctions[args.auctionId].gdprApplies = args.gdprConsent ? args.gdprConsent.gdprApplies : undefined;
           cache.auctions[args.auctionId].gdprConsent = args.gdprConsent ? args.gdprConsent.consentString : undefined;
 
-          const container = document.getElementById(bidReq.adUnitCode);
+          const container = getAdUnitElement(bidReq);
           const containerAttr = container ? container.getAttribute('data-adunitid') : undefined;
           const adUnitId = containerAttr || undefined;
 
diff --git a/modules/adotBidAdapter.js b/modules/adotBidAdapter.js
index 121c9960ade..052be840333 100644
--- a/modules/adotBidAdapter.js
+++ b/modules/adotBidAdapter.js
@@ -7,6 +7,7 @@ import { convertOrtbRequestToProprietaryNative } from '../src/native.js';
 import { isArray, isBoolean, isFn, isPlainObject, isStr, logError, replaceAuctionPrice } from '../src/utils.js';
 import { OUTSTREAM } from '../src/video.js';
 import { NATIVE_ASSETS_IDS as NATIVE_ID_MAPPING, NATIVE_ASSETS as NATIVE_PLACEMENTS } from '../libraries/braveUtils/nativeAssets.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 /**
  * @typedef {import('../src/adapters/bidderFactory.js').BidRequest} BidRequest
@@ -495,7 +496,7 @@ function buildRenderer(bid, mediaType) {
     ad.renderer.push(() => {
       const domContainer = container
         ? document.querySelector(container)
-        : document.getElementById(adUnitCode);
+        : getAdUnitElement(ad)
 
       const player = new window.VASTPlayer(domContainer);
 
diff --git a/modules/adrelevantisBidAdapter.js b/modules/adrelevantisBidAdapter.js
index 7f2d850a23a..5fb877f5110 100644
--- a/modules/adrelevantisBidAdapter.js
+++ b/modules/adrelevantisBidAdapter.js
@@ -21,6 +21,7 @@ import {getANKeywordParam} from '../libraries/appnexusUtils/anKeywords.js';
 import {chunk} from '../libraries/chunk/chunk.js';
 import {transformSizes} from '../libraries/sizeUtils/tranformSize.js';
 import {hasUserInfo, hasAppDeviceInfo, hasAppId} from '../libraries/adrelevantisUtils/bidderUtils.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 /**
  * @typedef {import('../src/adapters/bidderFactory.js').BidRequest} BidRequest
@@ -250,10 +251,9 @@ function newRenderer(adUnitCode, rtbBid, rendererOptions = {}) {
 
 /**
  * This function hides google div container for outstream bids to remove unwanted space on page. Appnexus renderer creates a new iframe outside of google iframe to render the outstream creative.
- * @param {string} elementId element id
  */
-function hidedfpContainer(elementId) {
-  var el = document.getElementById(elementId).querySelectorAll("div[id^='google_ads']");
+function hidedfpContainer(bid) {
+  var el = getAdUnitElement(bid).querySelectorAll("div[id^='google_ads']");
   if (el[0]) {
     el[0].style.setProperty('display', 'none');
   }
@@ -261,7 +261,7 @@ function hidedfpContainer(elementId) {
 
 function outstreamRender(bid) {
   // push to render queue because ANOutstreamVideo may not be loaded yet
-  hidedfpContainer(bid.adUnitCode);
+  hidedfpContainer(bid);
   bid.renderer.push(() => {
     window.ANOutstreamVideo.renderAd({
       tagId: bid.adResponse.tag_id,
diff --git a/modules/appnexusBidAdapter.js b/modules/appnexusBidAdapter.js
index c710789640d..5eb2a8a483e 100644
--- a/modules/appnexusBidAdapter.js
+++ b/modules/appnexusBidAdapter.js
@@ -35,6 +35,7 @@ import {
 import {convertCamelToUnderscore, appnexusAliases} from '../libraries/appnexusUtils/anUtils.js';
 import {convertTypes} from '../libraries/transformParamsUtils/convertTypes.js';
 import {chunk} from '../libraries/chunk/chunk.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 /**
  * @typedef {import('../src/adapters/bidderFactory.js').BidRequest} BidRequest
@@ -1177,11 +1178,10 @@ function buildNativeRequest(params) {
 
 /**
  * This function hides google div container for outstream bids to remove unwanted space on page. Appnexus renderer creates a new iframe outside of google iframe to render the outstream creative.
- * @param {string} elementId element id
  */
-function hidedfpContainer(elementId) {
+function hidedfpContainer(container) {
   try {
-    const el = document.getElementById(elementId).querySelectorAll("div[id^='google_ads']");
+    const el = container.querySelectorAll("div[id^='google_ads']");
     if (el[0]) {
       el[0].style.setProperty('display', 'none');
     }
@@ -1190,10 +1190,10 @@ function hidedfpContainer(elementId) {
   }
 }
 
-function hideSASIframe(elementId) {
+function hideSASIframe(container) {
   try {
     // find script tag with id 'sas_script'. This ensures it only works if you're using Smart Ad Server.
-    const el = document.getElementById(elementId).querySelectorAll("script[id^='sas_script']");
+    const el = container.querySelectorAll("script[id^='sas_script']");
     if (el[0].nextSibling && el[0].nextSibling.localName === 'iframe') {
       el[0].nextSibling.style.setProperty('display', 'none');
     }
@@ -1203,8 +1203,9 @@ function hideSASIframe(elementId) {
 }
 
 function outstreamRender(bid, doc) {
-  hidedfpContainer(bid.adUnitCode);
-  hideSASIframe(bid.adUnitCode);
+  const container = getAdUnitElement(bid);
+  hidedfpContainer(container);
+  hideSASIframe(container);
   // push to render queue because ANOutstreamVideo may not be loaded yet
   bid.renderer.push(() => {
     const win = doc?.defaultView || window;
diff --git a/modules/bidViewabilityIO.js b/modules/bidViewabilityIO.js
index 195b551c85b..201a779bb32 100644
--- a/modules/bidViewabilityIO.js
+++ b/modules/bidViewabilityIO.js
@@ -2,6 +2,7 @@ import { logMessage } from '../src/utils.js';
 import { config } from '../src/config.js';
 import * as events from '../src/events.js';
 import {EVENTS} from '../src/constants.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 const MODULE_NAME = 'bidViewabilityIO';
 const CONFIG_ENABLED = 'enabled';
@@ -80,7 +81,7 @@ export const init = () => {
       events.on(EVENTS.AD_RENDER_SUCCEEDED, ({doc, bid, id}) => {
         if (isSupportedMediaType(bid)) {
           const viewable = new IntersectionObserver(viewCallbackFactory(bid), getViewableOptions(bid));
-          const element = document.getElementById(bid.adUnitCode);
+          const element = getAdUnitElement(bid);
           viewable.observe(element);
         }
       });
diff --git a/modules/concertBidAdapter.js b/modules/concertBidAdapter.js
index a83c078ccef..0af69b71f32 100644
--- a/modules/concertBidAdapter.js
+++ b/modules/concertBidAdapter.js
@@ -4,6 +4,7 @@ import { getStorageManager } from '../src/storageManager.js';
 import { hasPurpose1Consent } from '../src/utils/gdpr.js';
 import { getBoundingClientRect } from '../libraries/boundingClientRect/boundingClientRect.js';
 import { getViewportCoordinates } from '../libraries/viewport/viewport.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 /**
  * @typedef {import('../src/adapters/bidderFactory.js').BidRequest} BidRequest
@@ -70,7 +71,7 @@ export const spec = {
 
     payload.slots = validBidRequests.map((bidRequest) => {
       eids.push(...(bidRequest.userIdAsEids || []));
-      const adUnitElement = document.getElementById(bidRequest.adUnitCode);
+      const adUnitElement = getAdUnitElement(bidRequest);
       const coordinates = getOffset(adUnitElement);
 
       const slot = {
diff --git a/modules/connatixBidAdapter.js b/modules/connatixBidAdapter.js
index 7b22de3aa1d..b5a749af56b 100644
--- a/modules/connatixBidAdapter.js
+++ b/modules/connatixBidAdapter.js
@@ -25,6 +25,7 @@ import {
   BANNER,
   VIDEO,
 } from '../src/mediaTypes.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 const BIDDER_CODE = 'connatix';
 
@@ -111,7 +112,7 @@ export function _getViewability(element, topWin, { w, h } = {}) {
 }
 
 export function detectViewability(bid) {
-  const { params, adUnitCode } = bid;
+  const { params } = bid;
 
   const viewabilityContainerIdentifier = params.viewabilityContainerIdentifier;
 
@@ -137,7 +138,7 @@ export function detectViewability(bid) {
     bidParamSizes = typeof bidParamSizes === 'undefined' && bid.mediaType && bid.mediaType.video && bid.mediaType.video.playerSize ? bid.mediaType.video.playerSize : bidParamSizes;
     bidParamSizes = typeof bidParamSizes === 'undefined' && bid.mediaType && bid.mediaType.video && isNumber(bid.mediaType.video.w) && isNumber(bid.mediaType.h) ? [bid.mediaType.video.w, bid.mediaType.video.h] : bidParamSizes;
     minSize = _getMinSize(bidParamSizes ?? [])
-    element = document.getElementById(adUnitCode);
+    element = getAdUnitElement(bid);
   }
 
   if (_isViewabilityMeasurable(element)) {
diff --git a/modules/contxtfulRtdProvider.js b/modules/contxtfulRtdProvider.js
index 4c319c9b48a..f711c300b8b 100644
--- a/modules/contxtfulRtdProvider.js
+++ b/modules/contxtfulRtdProvider.js
@@ -292,6 +292,7 @@ function getDivIdPosition(divId) {
 
       let domElement;
 
+      // TODO: this should use getAdUnitElement
       if (inIframe() === true) {
         const ws = getWindowSelf();
         const currentElement = ws.document.getElementById(divId);
@@ -335,6 +336,7 @@ function tryGetDivIdPosition(divIdMethod) {
   return undefined;
 }
 
+// TODO unified adUnit/element association in 11
 function tryMultipleDivIdPositions(adUnit) {
   const divMethods = [
     // ortb2\
diff --git a/modules/cwireBidAdapter.js b/modules/cwireBidAdapter.js
index 875dfdedf67..ccf6697987b 100644
--- a/modules/cwireBidAdapter.js
+++ b/modules/cwireBidAdapter.js
@@ -11,6 +11,7 @@ import { getBoundingClientRect } from "../libraries/boundingClientRect/boundingC
 import { hasPurpose1Consent } from "../src/utils/gdpr.js";
 import { sendBeacon } from "../src/ajax.js";
 import { isAutoplayEnabled } from "../libraries/autoplayDetection/autoplay.js";
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 /**
  * @typedef {import('../src/adapters/bidderFactory.js').BidRequest} BidRequest
@@ -35,7 +36,7 @@ export const storage = getStorageManager({ bidderCode: BIDDER_CODE });
  */
 function slotDimensions(bid) {
   const adUnitCode = bid.adUnitCode;
-  const slotEl = document.getElementById(adUnitCode);
+  const slotEl = getAdUnitElement(bid);
 
   if (slotEl) {
     logInfo(`Slot element found: ${adUnitCode}`);
diff --git a/modules/eplanningBidAdapter.js b/modules/eplanningBidAdapter.js
index 7ef55e31784..ab8c3ce5874 100644
--- a/modules/eplanningBidAdapter.js
+++ b/modules/eplanningBidAdapter.js
@@ -420,6 +420,7 @@ function _mapAdUnitPathToElementId(adUnitCode) {
 }
 
 function _getAdSlotHTMLElement(adUnitCode) {
+  // TODO: this should use getAdUnitElement
   return document.getElementById(adUnitCode) ||
     document.getElementById(_mapAdUnitPathToElementId(adUnitCode));
 }
diff --git a/modules/fanBidAdapter.js b/modules/fanBidAdapter.js
index 04247011751..266f121812c 100644
--- a/modules/fanBidAdapter.js
+++ b/modules/fanBidAdapter.js
@@ -6,6 +6,7 @@ import { getBidFloor } from '../libraries/currencyUtils/floor.js';
 import { getStorageManager } from '../src/storageManager.js';
 import { Renderer } from '../src/Renderer.js';
 import { getGptSlotInfoForAdUnitCode } from '../libraries/gptUtils/gptUtils.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 const BIDDER_CODE = 'freedomadnetwork';
 const BIDDER_VERSION = '0.2.0';
@@ -349,8 +350,7 @@ function createRenderer(bid, videoPlayerUrl) {
 
   try {
     renderer.setRender(function (bidResponse) {
-      const divId = document.getElementById(bid.adUnitCode) ? bid.adUnitCode : getGptSlotInfoForAdUnitCode(bid.adUnitCode).divId;
-      const adUnit = document.getElementById(divId);
+      const adUnit = getAdUnitElement(bidResponse) ?? document.getElementById(getGptSlotInfoForAdUnitCode(bid.adUnitCode).divId)
 
       if (!window.createOutstreamPlayer) {
         logWarn('Renderer error: outstream player is not available');
diff --git a/modules/gamoshiBidAdapter.js b/modules/gamoshiBidAdapter.js
index 66e74badf5e..d4d6c888057 100644
--- a/modules/gamoshiBidAdapter.js
+++ b/modules/gamoshiBidAdapter.js
@@ -16,6 +16,7 @@ import {BANNER, VIDEO} from '../src/mediaTypes.js';
 import {ortbConverter} from '../libraries/ortbConverter/converter.js';
 import {ortb25Translator} from '../libraries/ortb2.5Translator/translator.js';
 import {getCurrencyFromBidderRequest} from '../libraries/ortb2Utils/currency.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 const ENDPOINTS = {
   'gamoshi': 'https://rtb.gamoshi.io',
   'cleanmedianet': 'https://bidder.cleanmediaads.com'
@@ -250,7 +251,7 @@ function renderOutstream(bid) {
     window['GamoshiPlayer'].renderAd({
       id: unitId,
       debug: window.location.href.indexOf('pbjsDebug') >= 0,
-      placement: document.getElementById(bid.adUnitCode),
+      placement: getAdUnitElement(bid),
       width: bid.width,
       height: bid.height,
       events: {
diff --git a/modules/h12mediaBidAdapter.js b/modules/h12mediaBidAdapter.js
index 963ae660e57..0b1a050a153 100644
--- a/modules/h12mediaBidAdapter.js
+++ b/modules/h12mediaBidAdapter.js
@@ -2,6 +2,7 @@ import { inIframe, logError, logMessage, deepAccess, getWinDimensions } from '..
 import { registerBidder } from '../src/adapters/bidderFactory.js';
 import { getBoundingClientRect } from '../libraries/boundingClientRect/boundingClientRect.js';
 import { getViewportSize } from '../libraries/viewport/viewport.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 const BIDDER_CODE = 'h12media';
 const DEFAULT_URL = 'https://bidder.h12-media.com/prebid/';
 const DEFAULT_CURRENCY = 'USD';
@@ -30,7 +31,7 @@ export const spec = {
         pubsubid = '';
       }
       const pubcontainerid = bidderParams.pubcontainerid;
-      const adUnitElement = document.getElementById(pubcontainerid || bidRequest.adUnitCode);
+      const adUnitElement = pubcontainerid ? document.getElementById(pubcontainerid) : getAdUnitElement(bidRequest);
       const ishidden = !isVisible(adUnitElement);
       const framePos = getFramePos();
       const coords = isiframe ? {
diff --git a/modules/hypelabBidAdapter.js b/modules/hypelabBidAdapter.js
index bc562b84cb3..8edd78232b3 100644
--- a/modules/hypelabBidAdapter.js
+++ b/modules/hypelabBidAdapter.js
@@ -5,6 +5,7 @@ import { getDevicePixelRatio } from '../libraries/devicePixelRatio/devicePixelRa
 import { ajax } from '../src/ajax.js';
 import { getBoundingClientRect } from '../libraries/boundingClientRect/boundingClientRect.js';
 import { getWalletPresence, getWalletProviderFlags } from '../libraries/hypelabUtils/hypelabUtils.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 export const BIDDER_CODE = 'hypelab';
 export const ENDPOINT_URL = 'https://api.hypelab.com';
@@ -55,7 +56,7 @@ function buildRequests(validBidRequests, bidderRequest) {
         winDimensions?.innerHeight || 0
       ),
     ];
-    const pp = getPosition(request.adUnitCode);
+    const pp = getPosition(request);
 
     const payload = {
       property_slug: request.params.property_slug,
@@ -121,8 +122,8 @@ function getBidFloor(bid, sizes) {
   return floor;
 }
 
-function getPosition(id) {
-  const element = document.getElementById(id);
+function getPosition(bidRequest) {
+  const element = getAdUnitElement(bidRequest);
   if (!element) return null;
   const rect = getBoundingClientRect(element);
   return [rect.left, rect.top];
diff --git a/modules/ixBidAdapter.js b/modules/ixBidAdapter.js
index da01c3daa07..eedccabac52 100644
--- a/modules/ixBidAdapter.js
+++ b/modules/ixBidAdapter.js
@@ -23,14 +23,16 @@ import { registerBidder } from '../src/adapters/bidderFactory.js';
 import { INSTREAM, OUTSTREAM } from '../src/video.js';
 import { Renderer } from '../src/Renderer.js';
 import {getGptSlotInfoForAdUnitCode} from '../libraries/gptUtils/gptUtils.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 const divIdCache = {};
 
-export function getDivIdFromAdUnitCode(adUnitCode) {
+export function getDivIdFromAdUnit(adUnitCode, target) {
   if (divIdCache[adUnitCode]) {
     return divIdCache[adUnitCode];
   }
-  const divId = document.getElementById(adUnitCode) ? adUnitCode : getGptSlotInfoForAdUnitCode(adUnitCode).divId;
+  const element = getAdUnitElement(target);
+  const divId = element?.id ? element.id : getGptSlotInfoForAdUnitCode(adUnitCode).divId;
   divIdCache[adUnitCode] = divId;
   return divId;
 }
@@ -1357,7 +1359,7 @@ function createNativeImps(validBidRequest, nativeImps) {
     nativeImps[validBidRequest.adUnitCode].tagId = deepAccess(validBidRequest, 'params.tagId');
 
     const adUnitCode = validBidRequest.adUnitCode;
-    const divId = getDivIdFromAdUnitCode(adUnitCode);
+    const divId = getDivIdFromAdUnit(adUnitCode, validBidRequest);
     nativeImps[validBidRequest.adUnitCode].adUnitCode = adUnitCode;
     nativeImps[validBidRequest.adUnitCode].divId = divId;
   }
@@ -1379,7 +1381,7 @@ function createVideoImps(validBidRequest, videoImps) {
     videoImps[validBidRequest.adUnitCode].tagId = deepAccess(validBidRequest, 'params.tagId');
 
     const adUnitCode = validBidRequest.adUnitCode;
-    const divId = getDivIdFromAdUnitCode(adUnitCode);
+    const divId = getDivIdFromAdUnit(adUnitCode, validBidRequest);
     videoImps[validBidRequest.adUnitCode].adUnitCode = adUnitCode;
     videoImps[validBidRequest.adUnitCode].divId = divId;
   }
@@ -1418,7 +1420,7 @@ function createBannerImps(validBidRequest, missingBannerSizes, bannerImps, bidde
   }
 
   const adUnitCode = validBidRequest.adUnitCode;
-  const divId = getDivIdFromAdUnitCode(adUnitCode);
+  const divId = getDivIdFromAdUnit(adUnitCode, validBidRequest);
   bannerImps[validBidRequest.adUnitCode].adUnitCode = adUnitCode;
   bannerImps[validBidRequest.adUnitCode].divId = divId;
 
@@ -1486,7 +1488,7 @@ function createMissingBannerImp(bid, imp, newSize) {
 function outstreamRenderer(bid) {
   bid.renderer.push(function () {
     const adUnitCode = bid.adUnitCode;
-    const divId = getDivIdFromAdUnitCode(adUnitCode);
+    const divId = getDivIdFromAdUnit(adUnitCode, bid);
     if (!divId) {
       logWarn(`IX Bid Adapter: adUnitCode: ${divId} not found on page.`);
       return;
diff --git a/modules/livewrappedAnalyticsAdapter.js b/modules/livewrappedAnalyticsAdapter.js
index 37b73368fdc..515a88b9b53 100644
--- a/modules/livewrappedAnalyticsAdapter.js
+++ b/modules/livewrappedAnalyticsAdapter.js
@@ -4,6 +4,7 @@ import adapter from '../libraries/analyticsAdapter/AnalyticsAdapter.js';
 import { EVENTS } from '../src/constants.js';
 import adapterManager from '../src/adapterManager.js';
 import { getGlobal } from '../src/prebidGlobal.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 const ANALYTICSTYPE = 'endpoint';
 const URL = 'https://lwadm.com/analytics/10';
@@ -41,7 +42,7 @@ const livewrappedAnalyticsAdapter = Object.assign(adapter({EMPTYURL, ANALYTICSTY
           cache.auctions[args.auctionId].gdprApplies = args.gdprConsent ? args.gdprConsent.gdprApplies : undefined;
           cache.auctions[args.auctionId].gdprConsent = args.gdprConsent ? args.gdprConsent.consentString : undefined;
           let lwFloor;
-          const container = document.getElementById(bidRequest.adUnitCode);
+          const container = getAdUnitElement(bidRequest);
           let adUnitId = container ? container.getAttribute('data-adunitid') : undefined;
           adUnitId = adUnitId != null ? adUnitId : undefined;
 
diff --git a/modules/marsmediaBidAdapter.js b/modules/marsmediaBidAdapter.js
index 0224c951374..1ed553a30d0 100644
--- a/modules/marsmediaBidAdapter.js
+++ b/modules/marsmediaBidAdapter.js
@@ -5,6 +5,7 @@ import { BANNER, VIDEO } from '../src/mediaTypes.js';
 import {config} from '../src/config.js';
 import { percentInView } from '../libraries/percentInView/percentInView.js';
 import {getMinSize} from '../libraries/sizeUtils/sizeUtils.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 import {getDNT} from '../libraries/dnt/index.js';
 
 function MarsmediaAdapter() {
@@ -167,7 +168,7 @@ function MarsmediaAdapter() {
       bidSizes = bidSizes.filter(size => isArray(size));
       const processedSizes = bidSizes.map(size => ({w: parseInt(size[0], 10), h: parseInt(size[1], 10)}));
 
-      const element = document.getElementById(bid.adUnitCode);
+      const element = getAdUnitElement(bid);
       const minSize = getMinSize(processedSizes);
       const viewabilityAmount = _isViewabilityMeasurable(element)
         ? _getViewability(element, getWindowTop(), minSize)
diff --git a/modules/mediafuseBidAdapter.js b/modules/mediafuseBidAdapter.js
index a2922c6cd3e..9123f05c601 100644
--- a/modules/mediafuseBidAdapter.js
+++ b/modules/mediafuseBidAdapter.js
@@ -31,6 +31,7 @@ import {
 } from '../libraries/appnexusUtils/anKeywords.js';
 import {convertCamelToUnderscore} from '../libraries/appnexusUtils/anUtils.js';
 import {chunk} from '../libraries/chunk/chunk.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 /**
  * @typedef {import('../src/adapters/bidderFactory.js').BidRequest} BidRequest
@@ -933,19 +934,18 @@ function buildNativeRequest(params) {
 
 /**
  * This function hides google div container for outstream bids to remove unwanted space on page. Mediafuse renderer creates a new iframe outside of google iframe to render the outstream creative.
- * @param {string} elementId element id
  */
-function hidedfpContainer(elementId) {
-  var el = document.getElementById(elementId).querySelectorAll("div[id^='google_ads']");
+function hidedfpContainer(container) {
+  var el = container.querySelectorAll("div[id^='google_ads']");
   if (el[0]) {
     el[0].style.setProperty('display', 'none');
   }
 }
 
-function hideSASIframe(elementId) {
+function hideSASIframe(container) {
   try {
     // find script tag with id 'sas_script'. This ensures it only works if you're using Smart Ad Server.
-    const el = document.getElementById(elementId).querySelectorAll("script[id^='sas_script']");
+    const el = container.querySelectorAll("script[id^='sas_script']");
     if (el[0].nextSibling && el[0].nextSibling.localName === 'iframe') {
       el[0].nextSibling.style.setProperty('display', 'none');
     }
@@ -955,8 +955,9 @@ function hideSASIframe(elementId) {
 }
 
 function outstreamRender(bid) {
-  hidedfpContainer(bid.adUnitCode);
-  hideSASIframe(bid.adUnitCode);
+  const container = getAdUnitElement(bid);
+  hidedfpContainer(container);
+  hideSASIframe(container);
   // push to render queue because ANOutstreamVideo may not be loaded
   bid.renderer.push(() => {
     window.ANOutstreamVideo.renderAd({
diff --git a/modules/medianetBidAdapter.js b/modules/medianetBidAdapter.js
index 18a557c8617..6e6685ef737 100644
--- a/modules/medianetBidAdapter.js
+++ b/modules/medianetBidAdapter.js
@@ -23,6 +23,7 @@ import {GLOBAL_VENDOR_ID, MEDIANET} from '../libraries/medianetUtils/constants.j
 import {getGlobal} from '../src/prebidGlobal.js';
 import {getBoundingClientRect} from '../libraries/boundingClientRect/boundingClientRect.js';
 import {getMinSize} from '../libraries/sizeUtils/sizeUtils.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 /**
  * @typedef {import('../src/adapters/bidderFactory.js').BidRequest} BidRequest
@@ -133,11 +134,11 @@ function getWindowSize() {
   }
 }
 
-function getCoordinates(adUnitCode) {
-  let element = document.getElementById(adUnitCode);
-  if (!element && adUnitCode.indexOf('/') !== -1) {
+function getCoordinates(bidRequest) {
+  let element = getAdUnitElement(bidRequest);
+  if (!element && bidRequest.adUnitCode.indexOf('/') !== -1) {
     // now it means that adUnitCode is GAM AdUnitPath
-    const {divId} = getGptSlotInfoForAdUnitCode(adUnitCode);
+    const {divId} = getGptSlotInfoForAdUnitCode(bidRequest.adUnitCode);
     if (isStr(divId)) {
       element = document.getElementById(divId);
     }
@@ -239,7 +240,7 @@ function slotParams(bidRequest, bidderRequests) {
   if (bidFloor) {
     params.bidfloor = bidFloor;
   }
-  const coordinates = getCoordinates(bidRequest.adUnitCode);
+  const coordinates = getCoordinates(bidRequest);
   if (coordinates && params.banner && params.banner.length !== 0) {
     const normCoordinates = normalizeCoordinates(coordinates);
     params.ext.coordinates = normCoordinates;
diff --git a/modules/msftBidAdapter.js b/modules/msftBidAdapter.js
index 6155b91e778..1416dcb89cf 100644
--- a/modules/msftBidAdapter.js
+++ b/modules/msftBidAdapter.js
@@ -31,6 +31,7 @@ import {
   logWarn,
   mergeDeep
 } from "../src/utils.js";
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 const BIDDER_CODE = "msft";
 const DEBUG_PARAMS = ['enabled', 'dongle', 'member_id', 'debug_timeout'];
@@ -502,12 +503,10 @@ function newRenderer(adUnitCode, rtbBid, rendererOptions = {}) {
 
 /**
  * This function hides google div container for outstream bids to remove unwanted space on page. Appnexus renderer creates a new iframe outside of google iframe to render the outstream creative.
- * @param {string} elementId element id
  */
-function hidedfpContainer(elementId) {
+function hidedfpContainer(container) {
   try {
-    const el = document
-      .getElementById(elementId)
+    const el = container
       .querySelectorAll("div[id^='google_ads']");
     if (el[0]) {
       el[0].style.setProperty("display", "none");
@@ -517,11 +516,10 @@ function hidedfpContainer(elementId) {
   }
 }
 
-function hideSASIframe(elementId) {
+function hideSASIframe(container) {
   try {
     // find script tag with id 'sas_script'. This ensures it only works if you're using Smart Ad Server.
-    const el = document
-      .getElementById(elementId)
+    const el = container
       .querySelectorAll("script[id^='sas_script']");
     if (el[0]?.nextSibling?.localName === "iframe") {
       el[0].nextSibling.style.setProperty("display", "none");
@@ -539,8 +537,9 @@ function handleOutstreamRendererEvents(bid, id, eventName) {
 }
 
 function outstreamRender(bid, doc) {
-  hidedfpContainer(bid.adUnitCode);
-  hideSASIframe(bid.adUnitCode);
+  const container = getAdUnitElement(bid);
+  hidedfpContainer(container);
+  hideSASIframe(container);
   // push to render queue because ANOutstreamVideo may not be loaded yet
   bid.renderer.push(() => {
     const win = doc?.defaultView || window;
diff --git a/modules/nexverseBidAdapter.js b/modules/nexverseBidAdapter.js
index 91e78b807bd..6aef2b2d078 100644
--- a/modules/nexverseBidAdapter.js
+++ b/modules/nexverseBidAdapter.js
@@ -8,6 +8,7 @@ import { getDeviceModel, buildEndpointUrl, isBidRequestValid, parseNativeRespons
 import {getStorageManager} from '../src/storageManager.js';
 import {MODULE_TYPE_UID} from '../src/activities/modules.js';
 import { config } from '../src/config.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 import {getDNT} from '../libraries/dnt/index.js';
 
 const BIDDER_CODE = 'nexverse';
@@ -191,7 +192,7 @@ function buildOpenRtbRequest(bid, bidderRequest) {
   const imps = [];
 
   // Calculate viewability percentage for the ad unit
-  const adUnitElement = document.getElementById(bid.adUnitCode);
+  const adUnitElement = getAdUnitElement(bid);
   let viewabilityPercentage = 0;
   if (adUnitElement) {
     const rect = getBoundingClientRect(adUnitElement);
diff --git a/modules/omsBidAdapter.js b/modules/omsBidAdapter.js
index fd7be06409e..8bac9c8c04c 100644
--- a/modules/omsBidAdapter.js
+++ b/modules/omsBidAdapter.js
@@ -16,6 +16,7 @@ import {percentInView} from '../libraries/percentInView/percentInView.js';
 import {getUserSyncParams} from '../libraries/userSyncUtils/userSyncUtils.js';
 import {getMinSize} from '../libraries/sizeUtils/sizeUtils.js';
 import {getBidFloor, isIframe} from '../libraries/omsUtils/index.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 const BIDDER_CODE = 'oms';
 const URL = 'https://rt.marphezis.com/hb';
@@ -43,7 +44,7 @@ function buildRequests(bidReqs, bidderRequest) {
       bidSizes = bidSizes.filter(size => isArray(size));
       const processedSizes = bidSizes.map(size => ({w: parseInt(size[0], 10), h: parseInt(size[1], 10)}));
 
-      const element = document.getElementById(bid.adUnitCode);
+      const element = getAdUnitElement(bid);
       const minSize = getMinSize(processedSizes);
       const viewabilityAmount = _isViewabilityMeasurable(element) ? _getViewability(element, getWindowTop(), minSize) : 'na';
       const viewabilityAmountRounded = isNaN(viewabilityAmount) ? viewabilityAmount : Math.round(viewabilityAmount);
diff --git a/modules/onetagBidAdapter.js b/modules/onetagBidAdapter.js
index 827291f5407..8486a982050 100644
--- a/modules/onetagBidAdapter.js
+++ b/modules/onetagBidAdapter.js
@@ -9,6 +9,7 @@ import { deepClone, logError, deepAccess, getWinDimensions } from '../src/utils.
 import { getBoundingClientRect } from '../libraries/boundingClientRect/boundingClientRect.js';
 import { toOrtbNativeRequest } from '../src/native.js';
 import { getConnectionInfo } from '../libraries/connectionInfo/connectionUtils.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 /**
  * @typedef {import('../src/adapters/bidderFactory.js').BidRequest} BidRequest
@@ -358,14 +359,14 @@ function setGeneralInfo(bidRequest) {
   if (params.dealId) {
     this['dealId'] = params.dealId;
   }
-  const coords = getSpaceCoords(bidRequest.adUnitCode);
+  const coords = getSpaceCoords(bidRequest);
   if (coords) {
     this['coords'] = coords;
   }
 }
 
-function getSpaceCoords(id) {
-  const space = document.getElementById(id);
+function getSpaceCoords(bidRequest) {
+  const space = getAdUnitElement(bidRequest);
   try {
     const { top, left, width, height } = getBoundingClientRect(space);
     let window = space.ownerDocument.defaultView;
diff --git a/modules/onomagicBidAdapter.js b/modules/onomagicBidAdapter.js
index c3176d7abcc..7e380d540c0 100644
--- a/modules/onomagicBidAdapter.js
+++ b/modules/onomagicBidAdapter.js
@@ -12,6 +12,7 @@ import {BANNER} from '../src/mediaTypes.js';
 import { percentInView } from '../libraries/percentInView/percentInView.js';
 import {getMinSize} from '../libraries/sizeUtils/sizeUtils.js';
 import {getBidFloor, isIframe} from '../libraries/omsUtils/index.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 const BIDDER_CODE = 'onomagic';
 const URL = 'https://bidder.onomagic.com/hb';
@@ -39,7 +40,7 @@ function buildRequests(bidReqs, bidderRequest) {
       bidSizes = bidSizes.filter(size => isArray(size));
       const processedSizes = bidSizes.map(size => ({w: parseInt(size[0], 10), h: parseInt(size[1], 10)}));
 
-      const element = document.getElementById(bid.adUnitCode);
+      const element = getAdUnitElement(bid);
       const minSize = getMinSize(processedSizes);
       const viewabilityAmount = _isViewabilityMeasurable(element)
         ? _getViewability(element, getWindowTop(), minSize)
diff --git a/modules/pubmaticBidAdapter.js b/modules/pubmaticBidAdapter.js
index e0b61880fb7..87617623284 100644
--- a/modules/pubmaticBidAdapter.js
+++ b/modules/pubmaticBidAdapter.js
@@ -9,6 +9,7 @@ import { ortbConverter } from '../libraries/ortbConverter/converter.js';
 import { NATIVE_ASSET_TYPES, NATIVE_IMAGE_TYPES, PREBID_NATIVE_DATA_KEYS_TO_ORTB, NATIVE_KEYS_THAT_ARE_NOT_ASSETS, NATIVE_KEYS } from '../src/constants.js';
 import { addDealCustomTargetings, addPMPDeals } from '../libraries/dealUtils/dealUtils.js';
 import { getConnectionType } from '../libraries/connectionInfo/connectionUtils.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 /**
  * @typedef {import('../src/adapters/bidderFactory.js').BidRequest} BidRequest
@@ -599,7 +600,7 @@ const BB_RENDERER = {
     }
 
     const rendererId = BB_RENDERER.getRendererId(PUBLICATION, bid.rendererCode);
-    const ele = document.getElementById(bid.adUnitCode); // NB convention
+    const ele = getAdUnitElement(bid);
 
     const renderer = window.bluebillywig.renderers.find(r => r._id === rendererId);
     if (renderer) renderer.bootstrap(config, ele);
diff --git a/modules/rubiconBidAdapter.js b/modules/rubiconBidAdapter.js
index 477da80d420..cb8101bbae7 100644
--- a/modules/rubiconBidAdapter.js
+++ b/modules/rubiconBidAdapter.js
@@ -23,6 +23,7 @@ import {
 } from '../src/utils.js';
 import {getAllOrtbKeywords} from '../libraries/keywords/keywords.js';
 import {getUserSyncParams} from '../libraries/userSyncUtils/userSyncUtils.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 /**
  * @typedef {import('../src/adapters/bidderFactory.js').BidRequest} BidRequest
@@ -827,7 +828,7 @@ function hideSmartAdServerIframe(adUnit) {
 
 function renderBid(bid) {
   // hide existing ad units
-  const adUnitElement = document.getElementById(bid.adUnitCode);
+  const adUnitElement = getAdUnitElement(bid);
   hideGoogleAdsDiv(adUnitElement);
   hideSmartAdServerIframe(adUnitElement);
 
diff --git a/modules/seedtagBidAdapter.js b/modules/seedtagBidAdapter.js
index f93ed814a0a..2e9ca96f6f7 100644
--- a/modules/seedtagBidAdapter.js
+++ b/modules/seedtagBidAdapter.js
@@ -5,6 +5,7 @@ import { BANNER, VIDEO } from '../src/mediaTypes.js';
 import { _map, getWinDimensions, isArray, triggerPixel } from '../src/utils.js';
 import { getViewportCoordinates } from '../libraries/viewport/viewport.js';
 import { getConnectionInfo } from '../libraries/connectionInfo/connectionUtils.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 /**
  * @typedef {import('../src/adapters/bidderFactory.js').BidRequest} BidRequest
@@ -123,7 +124,7 @@ function buildBidRequest(validBidRequest) {
     supplyTypes: mediaTypes,
     adUnitId: params.adUnitId,
     adUnitCode: validBidRequest.adUnitCode,
-    geom: geom(validBidRequest.adUnitCode),
+    geom: geom(validBidRequest),
     placement: params.placement,
     requestCount: validBidRequest.bidderRequestsCount || 1,
   };
@@ -217,8 +218,8 @@ function ttfb() {
   return ttfb >= 0 && ttfb <= performance.now() ? ttfb : 0;
 }
 
-function geom(adunitCode) {
-  const slot = document.getElementById(adunitCode);
+function geom(bidRequest) {
+  const slot = getAdUnitElement(bidRequest);
   if (slot) {
     const { top, left, width, height } = getBoundingClientRect(slot);
     const viewport = {
diff --git a/modules/sparteoBidAdapter.js b/modules/sparteoBidAdapter.js
index 13cb0198594..350c3109984 100644
--- a/modules/sparteoBidAdapter.js
+++ b/modules/sparteoBidAdapter.js
@@ -91,6 +91,7 @@ function createRenderer(rendererConfig) {
 }
 
 function outstreamRender(bid) {
+  // TODO this should use getAdUnitElement
   if (!document.getElementById(bid.adUnitCode)) {
     logError(`Sparteo Bid Adapter: Video renderer did not started. bidResponse.adUnitCode is probably not a DOM element : ${bid.adUnitCode}`);
     return;
diff --git a/modules/stroeerCoreBidAdapter.js b/modules/stroeerCoreBidAdapter.js
index aa9f656aa24..ec29df5a045 100644
--- a/modules/stroeerCoreBidAdapter.js
+++ b/modules/stroeerCoreBidAdapter.js
@@ -156,6 +156,7 @@ const isMainPageAccessible = () => {
 }
 
 const elementInView = (elementId) => {
+  // TODO this should use getAdUnitElement
   const resolveElement = (elId) => {
     const win = getWindowSelf();
 
diff --git a/modules/taboolaBidAdapter.js b/modules/taboolaBidAdapter.js
index 3b39dd3db03..276fd335e7b 100644
--- a/modules/taboolaBidAdapter.js
+++ b/modules/taboolaBidAdapter.js
@@ -11,6 +11,7 @@ import {getConnectionType} from '../libraries/connectionInfo/connectionUtils.js'
 import {getViewportCoordinates} from '../libraries/viewport/viewport.js';
 import {percentInView} from '../libraries/percentInView/percentInView.js';
 import {getBoundingClientRect} from '../libraries/boundingClientRect/boundingClientRect.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 const BIDDER_CODE = 'taboola';
 const GVLID = 42;
@@ -139,9 +140,9 @@ export function getDeviceExtSignals(existingExt = {}) {
   };
 }
 
-export function getElementSignals(adUnitCode) {
+export function getElementSignals(bidRequest) {
   try {
-    const element = document.getElementById(adUnitCode);
+    const element = getAdUnitElement(bidRequest);
     if (!element) return null;
 
     const rect = getBoundingClientRect(element);
@@ -419,7 +420,7 @@ function fillTaboolaImpData(bid, imp) {
   deepSetValue(imp, 'ext.prebid.bidderRequestsCount', bid.bidderRequestsCount);
   deepSetValue(imp, 'ext.prebid.bidderWinsCount', bid.bidderWinsCount);
 
-  const elementSignals = getElementSignals(bid.adUnitCode);
+  const elementSignals = getElementSignals(bid);
   if (elementSignals) {
     if (elementSignals.viewability !== undefined) {
       deepSetValue(imp, 'ext.viewability', elementSignals.viewability);
diff --git a/modules/underdogmediaBidAdapter.js b/modules/underdogmediaBidAdapter.js
index 45bac54e64c..f0fec36df1e 100644
--- a/modules/underdogmediaBidAdapter.js
+++ b/modules/underdogmediaBidAdapter.js
@@ -13,6 +13,7 @@ import {registerBidder} from '../src/adapters/bidderFactory.js';
 import {isSlotMatchingAdUnitCode} from '../libraries/gptUtils/gptUtils.js';
 import { percentInView } from '../libraries/percentInView/percentInView.js';
 import {isIframe} from '../libraries/omsUtils/index.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 const BIDDER_CODE = 'underdogmedia';
 const UDM_ADAPTER_VERSION = '7.30V';
@@ -109,7 +110,7 @@ export const spec = {
       sizes = flatten(sizes, parseSizesInput(bidParamSizes));
       siteId = +bidParam.params.siteId;
       const adUnitCode = bidParam.adUnitCode
-      const element = _getAdSlotHTMLElement(adUnitCode)
+      const element = _getAdSlotHTMLElement(bidParam)
       const minSize = _getMinSize(bidParamSizes)
 
       placementObject.sizes = parseSizesInput(bidParamSizes)
@@ -234,9 +235,9 @@ function _getMinSize(bidParamSizes) {
   return bidParamSizes.reduce((min, size) => size.h * size.w < min.h * min.w ? size : min)
 }
 
-function _getAdSlotHTMLElement(adUnitCode) {
-  return document.getElementById(adUnitCode) ||
-    document.getElementById(_mapAdUnitPathToElementId(adUnitCode));
+function _getAdSlotHTMLElement(bidRequest) {
+  return getAdUnitElement(bidRequest) ||
+    document.getElementById(_mapAdUnitPathToElementId(bidRequest.adUnitCode));
 }
 
 function _mapAdUnitPathToElementId(adUnitCode) {
diff --git a/modules/undertoneBidAdapter.js b/modules/undertoneBidAdapter.js
index badc0911270..01b8760d085 100644
--- a/modules/undertoneBidAdapter.js
+++ b/modules/undertoneBidAdapter.js
@@ -7,6 +7,7 @@ import { getBoundingClientRect } from '../libraries/boundingClientRect/boundingC
 import { getViewportCoordinates } from '../libraries/viewport/viewport.js';
 import {registerBidder} from '../src/adapters/bidderFactory.js';
 import {BANNER, VIDEO} from '../src/mediaTypes.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 const BIDDER_CODE = 'undertone';
 const URL = 'https://hb.undertone.com/hb';
@@ -38,8 +39,8 @@ function getGdprQueryParams(gdprConsent) {
   return `gdpr=${gdpr}&gdprstr=${gdprstr}`;
 }
 
-function getBannerCoords(id) {
-  const element = document.getElementById(id);
+function getBannerCoords(bidRequest) {
+  const element = getAdUnitElement(bidRequest);
   if (element) {
     const {left, top} = getBoundingClientRect(element);
     const viewport = getViewportCoordinates();
@@ -109,7 +110,7 @@ export const spec = {
     validBidRequests.forEach(bidReq => {
       const bid = {
         bidRequestId: bidReq.bidId,
-        coordinates: getBannerCoords(bidReq.adUnitCode),
+        coordinates: getBannerCoords(bidReq),
         hbadaptor: 'prebid',
         url: pageUrl,
         domain: domain,
diff --git a/modules/valuadBidAdapter.js b/modules/valuadBidAdapter.js
index 6a32d80b806..d6af61d8077 100644
--- a/modules/valuadBidAdapter.js
+++ b/modules/valuadBidAdapter.js
@@ -12,6 +12,7 @@ import { getGptSlotInfoForAdUnitCode } from '../libraries/gptUtils/gptUtils.js';
 import { config } from '../src/config.js';
 import { getBoundingBox, percentInView } from '../libraries/percentInView/percentInView.js';
 import {isIframe} from '../libraries/omsUtils/index.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 const BIDDER_CODE = 'valuad';
 const GVL_ID = 1478;
@@ -106,7 +107,7 @@ const converter = ortbConverter({
 
     const size = {w: adSize[0], h: adSize[1]};
 
-    const element = document.getElementById(bid.adUnitCode) || document.getElementById(getGptSlotInfoForAdUnitCode(bid.adUnitCode)?.divId);
+    const element = getAdUnitElement(bid) || document.getElementById(getGptSlotInfoForAdUnitCode(bid.adUnitCode)?.divId);
     const viewabilityAmount = _isViewabilityMeasurable(element) ? _getViewability(element, getWindowTop(), size) : 0;
 
     const rect = element && getBoundingBox(element, size);
diff --git a/modules/visxBidAdapter.js b/modules/visxBidAdapter.js
index 801c68acc2d..5b09faa41dd 100644
--- a/modules/visxBidAdapter.js
+++ b/modules/visxBidAdapter.js
@@ -7,6 +7,7 @@ import {getStorageManager} from '../src/storageManager.js';
 import {getGptSlotInfoForAdUnitCode} from '../libraries/gptUtils/gptUtils.js';
 import { getBidFromResponse } from '../libraries/processResponse/index.js';
 import { getCurrencyFromBidderRequest } from '../libraries/ortb2Utils/currency.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 const BIDDER_CODE = 'visx';
 const GVLID = 154;
@@ -295,7 +296,7 @@ function makeVideo(videoParams = {}) {
 }
 
 function buildImpObject(bid) {
-  const { params: { uid }, bidId, mediaTypes, sizes, adUnitCode } = bid;
+  const { params: { uid }, bidId, mediaTypes, sizes } = bid;
   const video = mediaTypes && _isVideoBid(bid) && _isValidVideoBid(bid) && makeVideo(mediaTypes.video);
   const banner = makeBanner((mediaTypes && mediaTypes.banner) || (!video && { sizes }));
   const impObject = {
@@ -308,7 +309,7 @@ function buildImpObject(bid) {
   };
 
   if (impObject.banner) {
-    impObject.ext.bidder.adslotExists = _isAdSlotExists(adUnitCode);
+    impObject.ext.bidder.adslotExists = _isAdSlotExists(bid);
   }
 
   if (bid.ortb2Imp?.ext?.gpid) {
@@ -410,12 +411,12 @@ function _isValidVideoBid(bid, logErrors = false) {
   return result;
 }
 
-function _isAdSlotExists(adUnitCode) {
-  if (document.getElementById(adUnitCode)) {
+function _isAdSlotExists(bidRequest) {
+  if (getAdUnitElement(bidRequest)) {
     return true;
   }
 
-  const gptAdSlot = getGptSlotInfoForAdUnitCode(adUnitCode);
+  const gptAdSlot = getGptSlotInfoForAdUnitCode(bidRequest.adUnitCode);
   if (gptAdSlot.divId && document.getElementById(gptAdSlot.divId)) {
     return true;
   }
diff --git a/modules/widespaceBidAdapter.js b/modules/widespaceBidAdapter.js
index 7a8dec47a28..aa4327bdf8f 100644
--- a/modules/widespaceBidAdapter.js
+++ b/modules/widespaceBidAdapter.js
@@ -4,6 +4,7 @@ import {deepClone, parseQueryStringParameters, parseSizesInput} from '../src/uti
 import {getStorageManager} from '../src/storageManager.js';
 import { getBoundingClientRect } from '../libraries/boundingClientRect/boundingClientRect.js';
 import { getConnectionInfo } from '../libraries/connectionInfo/connectionUtils.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 const BIDDER_CODE = 'widespace';
 const WS_ADAPTER_VERSION = '2.0.1';
@@ -53,7 +54,7 @@ export const spec = {
         'inFrame': 1,
         'sid': bid.params.sid,
         'lcuid': LC_UID,
-        'vol': isInHostileIframe ? '' : visibleOnLoad(document.getElementById(bid.adUnitCode)),
+        'vol': isInHostileIframe ? '' : visibleOnLoad(getAdUnitElement(bid)),
         'gdprCmp': bidderRequest && bidderRequest.gdprConsent ? 1 : 0,
         'hb': '1',
         'hb.cd': CUST_DATA ? encodedParamValue(CUST_DATA) : '',
diff --git a/modules/yandexBidAdapter.js b/modules/yandexBidAdapter.js
index 901bbcf29de..ef7b8910c7d 100644
--- a/modules/yandexBidAdapter.js
+++ b/modules/yandexBidAdapter.js
@@ -7,6 +7,7 @@ import { getBoundingClientRect } from '../libraries/boundingClientRect/boundingC
 import { ajax } from '../src/ajax.js';
 import { config as pbjsConfig } from '../src/config.js';
 import { isWebdriverEnabled } from '../libraries/webdriver/webdriver.js';
+import {getAdUnitElement} from '../src/utils/adUnits.js';
 
 /**
  * @typedef {import('../src/adapters/bidderFactory.js').Bid} Bid
@@ -183,7 +184,7 @@ export const spec = {
         queryParams['tcf-consent'] = consentString;
       }
 
-      const adUnitElement = document.getElementById(bidRequest.params.pubcontainerid || bidRequest.adUnitCode);
+      const adUnitElement = bidRequest.params.pubcontainerid ? document.getElementById(bidRequest.params.pubcontainerid) : getAdUnitElement(bidRequest);
       const windowContext = getContext(adUnitElement);
       const isIframe = inIframe();
       const coords = isIframe ? getFramePosition() : {
diff --git a/src/adUnits.ts b/src/adUnits.ts
index 2cb94f788e3..644ced4df47 100644
--- a/src/adUnits.ts
+++ b/src/adUnits.ts
@@ -88,6 +88,11 @@ export interface AdUnitDefinition {
    * Used by setTargetingForGPTAsync() to match which auction is for which ad slot.
    */
   code: AdUnitCode;
+  /**
+   * A DOM element corresponding to this ad unit.
+   * By default, this is `document.getElementById(adUnit.code)`.
+   */
+  element?: HTMLElement;
   /**
    * Bid requests representing demand partners and associated parameters.
    */
diff --git a/src/adapterManager.ts b/src/adapterManager.ts
index 7c0faf40d1d..d569bbf0a2c 100644
--- a/src/adapterManager.ts
+++ b/src/adapterManager.ts
@@ -214,6 +214,7 @@ const ADUNIT_BID_PROPERTIES = [
   'nativeParams',
   'nativeOrtbRequest',
   'renderer',
+  'element',
 ] as const;
 
 type GetBidsOptions<SRC extends BidSource, BIDDER extends BidderCode | null> = {
diff --git a/src/auction.ts b/src/auction.ts
index dff01d6421b..a6aa0c85665 100644
--- a/src/auction.ts
+++ b/src/auction.ts
@@ -33,7 +33,7 @@ import {getMinBidCacheTTL, onMinBidCacheTTLChange} from './bidTTL.js';
 import type {Bid, BidResponse} from "./bidfactory.ts";
 import type {AdUnitCode, BidderCode, Identifier, ORTBFragments} from './types/common.d.ts';
 import type {TargetingMap} from "./targeting.ts";
-import type {AdUnit} from "./adUnits.ts";
+import type {AdUnit, AdUnitDefinition} from "./adUnits.ts";
 import type {MediaType} from "./mediaTypes.ts";
 import type {VideoContext} from "./video.ts";
 import { isActivityAllowed } from './activities/rules.js';
@@ -661,6 +661,7 @@ declare module './bidfactory' {
   }
 
   interface BaseBid {
+    element?: AdUnitDefinition['element'];
     /**
      * true if this bid is for an interstitial slot.
      */
@@ -770,6 +771,7 @@ function getPreparedBidForAuction(bid: Partial<Bid>, {index = auctionManager.ind
 
   const adUnit = index.getAdUnit(bid);
   bid.instl = adUnit?.ortb2Imp?.instl === 1;
+  bid.element = adUnit?.element;
 
   // a publisher-defined renderer can be used to render bids
   const bidRenderer = index.getBidRequest(bid)?.renderer || adUnit.renderer;
diff --git a/src/secureCreatives.js b/src/secureCreatives.js
index a385113e54e..99e140070df 100644
--- a/src/secureCreatives.js
+++ b/src/secureCreatives.js
@@ -15,6 +15,7 @@ import {
 } from './adRendering.js';
 import {getCreativeRendererSource, PUC_MIN_VERSION} from './creativeRenderers.js';
 import {PbPromise} from './utils/promise.js';
+import {getAdUnitElement} from './utils/adUnits.js';
 import {auctionManager} from './auctionManager.js';
 
 const { REQUEST, RESPONSE, NATIVE, EVENT } = MESSAGES;
@@ -165,7 +166,7 @@ export function resizeAnchor(ins, width, height) {
   })
 }
 
-export function resizeRemoteCreative({instl, adId, adUnitCode, width, height}) {
+export function resizeRemoteCreative({instl, element, adId, adUnitCode, width, height}) {
   // do not resize interstitials - the creative frame takes the full screen and sizing of the ad should
   // be handled within it.
   if (instl) return;
@@ -188,7 +189,7 @@ export function resizeRemoteCreative({instl, adId, adUnitCode, width, height}) {
 
   function getElementByAdUnit(elmType) {
     const id = getElementIdBasedOnAdServer(adId, adUnitCode);
-    const parentDivEle = document.getElementById(id);
+    const parentDivEle = id == null ? getAdUnitElement({element, adUnitCode}) : document.getElementById(id);
     return parentDivEle && parentDivEle.querySelector(elmType);
   }
 
@@ -205,7 +206,6 @@ export function resizeRemoteCreative({instl, adId, adUnitCode, width, height}) {
         return apnId;
       }
     }
-    return adUnitCode;
   }
 
   function getDfpElementId(adId) {
diff --git a/src/utils/adUnits.ts b/src/utils/adUnits.ts
new file mode 100644
index 00000000000..96e412910ab
--- /dev/null
+++ b/src/utils/adUnits.ts
@@ -0,0 +1,21 @@
+import type {AdUnitDefinition} from "../adUnits.ts";
+import type {BidRequest} from "../adapterManager.ts";
+import type {Bid} from "../bidfactory.ts";
+
+export function getAdUnitElement(bidRequest: BidRequest<any>): HTMLElement
+export function getAdUnitElement(bidResponse: Bid): HTMLElement
+export function getAdUnitElement(adUnit: AdUnitDefinition): HTMLElement
+export function getAdUnitElement(target: {
+  code?: string,
+  adUnitCode?: string,
+  element?: HTMLElement
+}): HTMLElement | null {
+  if (target.element != null) {
+    return target.element;
+  }
+  const id = target.adUnitCode ?? target.code;
+  if (id) {
+    return document.getElementById(id);
+  }
+  return null;
+}
diff --git a/test/spec/auctionmanager_spec.js b/test/spec/auctionmanager_spec.js
index b3a10ede626..5f1a05afd12 100644
--- a/test/spec/auctionmanager_spec.js
+++ b/test/spec/auctionmanager_spec.js
@@ -1278,6 +1278,12 @@ describe('auctionmanager.js', function () {
         expect(auction.getBidsReceived()[0].ttlBuffer).to.eql(0);
       });
 
+      it('sets bidResponse.element from adUnit.element', () => {
+        adUnits[0].element = 'test';
+        auction.callBids();
+        expect(auction.getBidsReceived()[0].element).to.equal('test');
+      });
+
       [
         {
           request: 1,
diff --git a/test/spec/modules/adnuntiusAnalyticsAdapter_spec.js b/test/spec/modules/adnuntiusAnalyticsAdapter_spec.js
index 55cddbb0dd2..0fc8c700aff 100644
--- a/test/spec/modules/adnuntiusAnalyticsAdapter_spec.js
+++ b/test/spec/modules/adnuntiusAnalyticsAdapter_spec.js
@@ -2,7 +2,7 @@ import adnAnalyticsAdapter, { BID_WON_TIMEOUT } from 'modules/adnuntiusAnalytics
 import { AD_RENDER_FAILED_REASON, EVENTS, STATUS } from 'src/constants.js';
 import { config } from 'src/config.js';
 import { server } from 'test/mocks/xhr.js';
-import { setConfig } from 'modules/currency.js';
+import * as adUnits from 'src/utils/adUnits';
 
 const events = require('src/events');
 const utils = require('src/utils');
@@ -301,7 +301,7 @@ describe('Adnuntius analytics adapter', function () {
     }
     sandbox.stub(events, 'getEvents').returns([]);
     sandbox.stub(utils, 'timestamp').returns(1519149562416);
-    sandbox.stub(document, 'getElementById').returns(element);
+    sandbox.stub(adUnits, 'getAdUnitElement').returns(element);
 
     clock = sandbox.useFakeTimers(1519767013781);
   });
diff --git a/test/spec/modules/concertBidAdapter_spec.js b/test/spec/modules/concertBidAdapter_spec.js
index 6c842e58d37..cf22b23e9ae 100644
--- a/test/spec/modules/concertBidAdapter_spec.js
+++ b/test/spec/modules/concertBidAdapter_spec.js
@@ -3,6 +3,7 @@ import sinon from 'sinon';
 import { spec, storage } from 'modules/concertBidAdapter.js';
 import { hook } from 'src/hook.js';
 import {getGlobal} from '../../../src/prebidGlobal.js';
+import * as adUnits from 'src/utils/adUnits';
 
 describe('ConcertAdapter', function () {
   let bidRequests;
@@ -86,7 +87,7 @@ describe('ConcertAdapter', function () {
     }
 
     sandbox = sinon.createSandbox();
-    sandbox.stub(document, 'getElementById').withArgs('desktop_leaderboard_variable').returns(element)
+    sandbox.stub(adUnits, 'getAdUnitElement').returns(element)
   });
 
   afterEach(function () {
diff --git a/test/spec/modules/connatixBidAdapter_spec.js b/test/spec/modules/connatixBidAdapter_spec.js
index aa9bdac75bd..e8a88775a5f 100644
--- a/test/spec/modules/connatixBidAdapter_spec.js
+++ b/test/spec/modules/connatixBidAdapter_spec.js
@@ -19,6 +19,7 @@ import adapterManager from '../../../src/adapterManager.js';
 import * as ajax from '../../../src/ajax.js';
 import { ADPOD, BANNER, VIDEO } from '../../../src/mediaTypes.js';
 import * as winDimensions from '../../../src/utils/winDimensions.js';
+import * as adUnits from 'src/utils/adUnits';
 
 const BIDDER_CODE = 'connatix';
 
@@ -220,7 +221,7 @@ describe('connatixBidAdapter', function () {
     let getBoundingClientRectStub;
     let topWinMock;
     let querySelectorStub;
-    let getElementByIdStub;
+    let getElementStub;
     let sandbox;
 
     beforeEach(() => {
@@ -237,7 +238,7 @@ describe('connatixBidAdapter', function () {
       };
 
       querySelectorStub = sandbox.stub(window.top.document, 'querySelector');
-      getElementByIdStub = sandbox.stub(document, 'getElementById');
+      getElementStub = sandbox.stub(adUnits, 'getAdUnitElement');
       sandbox.stub(winDimensions, 'getWinDimensions').callsFake(() => (
         {
           document: {
@@ -272,7 +273,7 @@ describe('connatixBidAdapter', function () {
       });
 
       querySelectorStub.withArgs('#validElement').returns(element);
-      getElementByIdStub.returns(null);
+      getElementStub.returns(null);
 
       const result = connatixDetectViewability(bid);
 
@@ -298,7 +299,7 @@ describe('connatixBidAdapter', function () {
       });
 
       querySelectorStub.withArgs('#invalidElement').returns(null);
-      getElementByIdStub.withArgs('adUnitCode123').returns(element);
+      getElementStub.returns(element);
 
       const result = connatixDetectViewability(bid);
 
@@ -325,7 +326,7 @@ describe('connatixBidAdapter', function () {
       });
 
       // The fallback should use the adUnitCode to find the element
-      getElementByIdStub.withArgs('adUnitCode123').returns(element);
+      getElementStub.returns(element);
 
       const result = connatixDetectViewability(bid);
 
diff --git a/test/spec/modules/cwireBidAdapter_spec.js b/test/spec/modules/cwireBidAdapter_spec.js
index 1a514d33155..6943618cf51 100644
--- a/test/spec/modules/cwireBidAdapter_spec.js
+++ b/test/spec/modules/cwireBidAdapter_spec.js
@@ -6,6 +6,7 @@ import * as utils from "src/utils.js";
 import sinon, { stub } from "sinon";
 import { config } from "../../../src/config.js";
 import * as autoplayLib from "../../../libraries/autoplayDetection/autoplay.js";
+import * as adUnits from 'src/utils/adUnits';
 
 describe("C-WIRE bid adapter", () => {
   config.setConfig({ debug: true });
@@ -101,8 +102,8 @@ describe("C-WIRE bid adapter", () => {
 
   describe("buildRequests reads adUnit offsetWidth and offsetHeight", function () {
     beforeEach(function () {
-      const documentStub = sandbox.stub(document, "getElementById");
-      documentStub.withArgs(`${bidRequests[0].adUnitCode}`).returns({
+      const documentStub = sandbox.stub(adUnits, "getAdUnitElement");
+      documentStub.returns({
         offsetWidth: 200,
         offsetHeight: 250,
         getBoundingClientRect() {
@@ -115,11 +116,9 @@ describe("C-WIRE bid adapter", () => {
 
       const request = spec.buildRequests([bidRequest], bidderRequest);
       const payload = JSON.parse(request.data);
-      const el = document.getElementById(`${bidRequest.adUnitCode}`);
 
       logInfo(JSON.stringify(payload));
 
-      expect(el).to.exist;
       expect(payload.slots[0].cwExt.dimensions.width).to.equal(200);
       expect(payload.slots[0].cwExt.dimensions.height).to.equal(250);
       expect(payload.slots[0].cwExt.style.maxHeight).to.not.exist;
@@ -131,8 +130,8 @@ describe("C-WIRE bid adapter", () => {
   });
   describe("buildRequests reads style attributes", function () {
     beforeEach(function () {
-      const documentStub = sandbox.stub(document, "getElementById");
-      documentStub.withArgs(`${bidRequests[0].adUnitCode}`).returns({
+      const documentStub = sandbox.stub(adUnits, "getAdUnitElement");
+      documentStub.returns({
         style: {
           maxWidth: "400px",
           maxHeight: "350px",
@@ -147,11 +146,8 @@ describe("C-WIRE bid adapter", () => {
 
       const request = spec.buildRequests([bidRequest], bidderRequest);
       const payload = JSON.parse(request.data);
-      const el = document.getElementById(`${bidRequest.adUnitCode}`);
-
       logInfo(JSON.stringify(payload));
 
-      expect(el).to.exist;
       expect(payload.slots[0].cwExt.style.maxWidth).to.eq("400px");
       expect(payload.slots[0].cwExt.style.maxHeight).to.eq("350px");
     });
diff --git a/test/spec/modules/ixBidAdapter_spec.js b/test/spec/modules/ixBidAdapter_spec.js
index 1a5bd0f1c01..39a9321fca9 100644
--- a/test/spec/modules/ixBidAdapter_spec.js
+++ b/test/spec/modules/ixBidAdapter_spec.js
@@ -2,7 +2,7 @@ import * as utils from 'src/utils.js';
 import { config } from 'src/config.js';
 import { expect } from 'chai';
 import { newBidder } from 'src/adapters/bidderFactory.js';
-import { spec, storage, FEATURE_TOGGLES, LOCAL_STORAGE_FEATURE_TOGGLES_KEY, REQUESTED_FEATURE_TOGGLES, combineImps, bidToVideoImp, bidToNativeImp, deduplicateImpExtFields, removeSiteIDs, addDeviceInfo, getDivIdFromAdUnitCode } from '../../../modules/ixBidAdapter.js';
+import { spec, storage, FEATURE_TOGGLES, LOCAL_STORAGE_FEATURE_TOGGLES_KEY, REQUESTED_FEATURE_TOGGLES, combineImps, bidToVideoImp, bidToNativeImp, deduplicateImpExtFields, removeSiteIDs, addDeviceInfo, getDivIdFromAdUnit } from '../../../modules/ixBidAdapter.js';
 import { deepAccess, deepClone } from '../../../src/utils.js';
 import * as ajaxLib from 'src/ajax.js';
 import * as gptUtils from '../../../libraries/gptUtils/gptUtils.js';
@@ -5217,15 +5217,15 @@ describe('IndexexchangeAdapter', function () {
       const el = document.createElement('div');
       el.id = adUnitCode;
       document.body.appendChild(el);
-      expect(getDivIdFromAdUnitCode(adUnitCode)).to.equal(adUnitCode);
+      expect(getDivIdFromAdUnit(adUnitCode, {code: adUnitCode})).to.equal(adUnitCode);
       document.body.removeChild(el);
     });
 
     it('retrieves divId from GPT once and caches result', () => {
       const adUnitCode = 'div-ad2';
       const stub = sinon.stub(gptUtils, 'getGptSlotInfoForAdUnitCode').returns({divId: 'gpt-div'});
-      const first = getDivIdFromAdUnitCode(adUnitCode);
-      const second = getDivIdFromAdUnitCode(adUnitCode);
+      const first = getDivIdFromAdUnit(adUnitCode, {});
+      const second = getDivIdFromAdUnit(adUnitCode, {});
       expect(first).to.equal('gpt-div');
       expect(second).to.equal('gpt-div');
       expect(stub.calledOnce).to.be.true;
diff --git a/test/spec/modules/livewrappedAnalyticsAdapter_spec.js b/test/spec/modules/livewrappedAnalyticsAdapter_spec.js
index f84d4ace1ff..d0fadf377a1 100644
--- a/test/spec/modules/livewrappedAnalyticsAdapter_spec.js
+++ b/test/spec/modules/livewrappedAnalyticsAdapter_spec.js
@@ -3,6 +3,7 @@ import { AD_RENDER_FAILED_REASON, EVENTS, STATUS } from 'src/constants.js';
 import { config } from 'src/config.js';
 import { server } from 'test/mocks/xhr.js';
 import { setConfig } from 'modules/currency.js';
+import * as adUnits from 'src/utils/adUnits';
 
 const events = require('src/events');
 const utils = require('src/utils');
@@ -323,7 +324,7 @@ describe('Livewrapped analytics adapter', function () {
     }
     sandbox.stub(events, 'getEvents').returns([]);
     sandbox.stub(utils, 'timestamp').returns(1519149562416);
-    sandbox.stub(document, 'getElementById').returns(element);
+    sandbox.stub(adUnits, 'getAdUnitElement').returns(element);
 
     clock = sandbox.useFakeTimers(1519767013781);
     setConfig({
diff --git a/test/spec/modules/marsmediaBidAdapter_spec.js b/test/spec/modules/marsmediaBidAdapter_spec.js
index cdfda655af3..d0ab86d90ec 100644
--- a/test/spec/modules/marsmediaBidAdapter_spec.js
+++ b/test/spec/modules/marsmediaBidAdapter_spec.js
@@ -2,6 +2,7 @@ import { spec } from 'modules/marsmediaBidAdapter.js';
 import * as utils from 'src/utils.js';
 import { config } from 'src/config.js';
 import { internal, resetWinDimensions } from '../../../src/utils.js';
+import * as adUnits from 'src/utils/adUnits';
 
 var marsAdapter = spec;
 
@@ -72,7 +73,7 @@ describe('marsmedia adapter tests', function () {
     ];
 
     sandbox = sinon.createSandbox();
-    sandbox.stub(document, 'getElementById').withArgs('Unit-Code').returns(element);
+    sandbox.stub(adUnits, 'getAdUnitElement').returns(element);
     sandbox.stub(utils, 'getWindowTop').returns(win);
     sandbox.stub(utils, 'getWindowSelf').returns(win);
   });
diff --git a/test/spec/modules/medianetBidAdapter_spec.js b/test/spec/modules/medianetBidAdapter_spec.js
index 728c68c20b1..d20206895f4 100644
--- a/test/spec/modules/medianetBidAdapter_spec.js
+++ b/test/spec/modules/medianetBidAdapter_spec.js
@@ -6,6 +6,7 @@ import { config } from '../../../src/config.js';
 import {server} from '../../mocks/xhr.js';
 import {resetWinDimensions} from '../../../src/utils.js';
 import {getGlobal} from '../../../src/prebidGlobal.js';
+import * as adUnits from 'src/utils/adUnits';
 
 getGlobal().version = getGlobal().version || 'version';
 const VALID_BID_REQUEST = [{
@@ -1979,17 +1980,13 @@ describe('Media.net bid adapter', function () {
     beforeEach(function () {
       getGlobal().medianetGlobals = {};
 
-      const documentStub = sandbox.stub(document, 'getElementById');
       const boundingRect = {
         top: 50,
         left: 50,
         bottom: 100,
         right: 100
       };
-      documentStub.withArgs('div-gpt-ad-1460505748561-123').returns({
-        getBoundingClientRect: () => boundingRect
-      });
-      documentStub.withArgs('div-gpt-ad-1460505748561-0').returns({
+      sandbox.stub(adUnits, 'getAdUnitElement').returns({
         getBoundingClientRect: () => boundingRect
       });
       const windowSizeStub = sandbox.stub(spec, 'getWindowSize');
@@ -2089,14 +2086,14 @@ describe('Media.net bid adapter', function () {
   });
 
   describe('slot visibility', function () {
-    let documentStub;
+    let elementStub;
     beforeEach(function () {
       const windowSizeStub = sandbox.stub(spec, 'getWindowSize');
       windowSizeStub.returns({
         w: 1000,
         h: 1000
       });
-      documentStub = sandbox.stub(document, 'getElementById');
+      elementStub = sandbox.stub(adUnits, 'getAdUnitElement');
     });
     it('slot visibility should be 2 and ratio 0 when ad unit is BTF', function () {
       const boundingRect = {
@@ -2105,10 +2102,7 @@ describe('Media.net bid adapter', function () {
         bottom: 1050,
         right: 1050
       };
-      documentStub.withArgs('div-gpt-ad-1460505748561-123').returns({
-        getBoundingClientRect: () => boundingRect
-      });
-      documentStub.withArgs('div-gpt-ad-1460505748561-0').returns({
+      elementStub.returns({
         getBoundingClientRect: () => boundingRect
       });
 
@@ -2124,10 +2118,7 @@ describe('Media.net bid adapter', function () {
         bottom: 1050,
         right: 1050
       };
-      documentStub.withArgs('div-gpt-ad-1460505748561-123').returns({
-        getBoundingClientRect: () => boundingRect
-      });
-      documentStub.withArgs('div-gpt-ad-1460505748561-0').returns({
+      elementStub.returns({
         getBoundingClientRect: () => boundingRect
       });
       const bidReq = spec.buildRequests(VALID_BID_REQUEST, VALID_AUCTIONDATA);
@@ -2142,10 +2133,7 @@ describe('Media.net bid adapter', function () {
         bottom: 1050,
         right: 1050
       };
-      documentStub.withArgs('div-gpt-ad-1460505748561-123').returns({
-        getBoundingClientRect: () => boundingRect
-      });
-      documentStub.withArgs('div-gpt-ad-1460505748561-0').returns({
+      elementStub.returns({
         getBoundingClientRect: () => boundingRect
       });
       const bidReq = spec.buildRequests(VALID_BID_REQUEST, VALID_AUCTIONDATA);
@@ -2170,12 +2158,9 @@ describe('Media.net bid adapter', function () {
         bottom: 1050,
         right: 1050
       };
-      documentStub.withArgs(divId).returns({
+      elementStub.returns({
         getBoundingClientRect: () => boundingRect
-      });
-      documentStub.withArgs('div-gpt-ad-1460505748561-123').returns({
-        getBoundingClientRect: () => boundingRect
-      });
+      })
 
       const bidRequest = [{...VALID_BID_REQUEST[0], adUnitCode: code}]
       const bidReq = spec.buildRequests(bidRequest, VALID_AUCTIONDATA);
diff --git a/test/spec/modules/omsBidAdapter_spec.js b/test/spec/modules/omsBidAdapter_spec.js
index 3b9c0779fb0..6f5e0ac05c9 100644
--- a/test/spec/modules/omsBidAdapter_spec.js
+++ b/test/spec/modules/omsBidAdapter_spec.js
@@ -3,6 +3,7 @@ import * as utils from 'src/utils.js';
 import {spec} from 'modules/omsBidAdapter';
 import {newBidder} from 'src/adapters/bidderFactory.js';
 import * as winDimensions from 'src/utils/winDimensions.js';
+import * as adUnits from 'src/utils/adUnits';
 
 const URL = 'https://rt.marphezis.com/hb';
 
@@ -83,7 +84,7 @@ describe('omsBidAdapter', function () {
     }];
 
     sandbox = sinon.createSandbox();
-    sandbox.stub(document, 'getElementById').withArgs('adunit-code').returns(element);
+    sandbox.stub(adUnits, 'getAdUnitElement').returns(element);
     sandbox.stub(winDimensions, 'getWinDimensions').returns(win);
     sandbox.stub(utils, 'getWindowTop').returns(win);
     sandbox.stub(utils, 'getWindowSelf').returns(win);
diff --git a/test/spec/modules/onomagicBidAdapter_spec.js b/test/spec/modules/onomagicBidAdapter_spec.js
index d043363b34d..ab44d280797 100644
--- a/test/spec/modules/onomagicBidAdapter_spec.js
+++ b/test/spec/modules/onomagicBidAdapter_spec.js
@@ -3,6 +3,7 @@ import * as utils from 'src/utils.js';
 import { spec } from 'modules/onomagicBidAdapter.js';
 import { newBidder } from 'src/adapters/bidderFactory.js';
 import * as winDimensions from 'src/utils/winDimensions.js';
+import * as adUnits from 'src/utils/adUnits';
 
 const URL = 'https://bidder.onomagic.com/hb';
 
@@ -61,7 +62,7 @@ describe('onomagicBidAdapter', function() {
 
     sandbox = sinon.createSandbox();
     sandbox.stub(winDimensions, 'getWinDimensions').returns(win);
-    sandbox.stub(document, 'getElementById').withArgs('adunit-code').returns(element);
+    sandbox.stub(adUnits, 'getAdUnitElement').returns(element);
     sandbox.stub(utils, 'getWindowTop').returns(win);
     sandbox.stub(utils, 'getWindowSelf').returns(win);
   });
diff --git a/test/spec/modules/seedtagBidAdapter_spec.js b/test/spec/modules/seedtagBidAdapter_spec.js
index 3a448c90d78..f80a95fc9ff 100644
--- a/test/spec/modules/seedtagBidAdapter_spec.js
+++ b/test/spec/modules/seedtagBidAdapter_spec.js
@@ -4,23 +4,13 @@ import * as utils from 'src/utils.js';
 import * as mockGpt from 'test/spec/integration/faker/googletag.js';
 import { config } from '../../../src/config.js';
 import { BIDFLOOR_CURRENCY } from '../../../modules/seedtagBidAdapter.js';
+import * as adUnits from 'src/utils/adUnits';
 
 const PUBLISHER_ID = '0000-0000-01';
 const ADUNIT_ID = '000000';
 
 const adUnitCode = '/19968336/header-bid-tag-0'
 
-// create a default adunit
-const slot = document.createElement('div');
-slot.id = adUnitCode;
-slot.style.width = '300px'
-slot.style.height = '250px'
-slot.style.position = 'absolute'
-slot.style.top = '10px'
-slot.style.left = '20px'
-
-document.body.appendChild(slot);
-
 function getSlotConfigs(mediaTypes, params) {
   return {
     params: params,
@@ -60,12 +50,25 @@ const createBannerSlotConfig = (mediatypes) => {
 };
 
 describe('Seedtag Adapter', function () {
+  let sandbox;
   beforeEach(function () {
     mockGpt.reset();
+    sandbox = sinon.createSandbox();
+    sandbox.stub(adUnits, 'getAdUnitElement').returns({
+      getBoundingClientRect() {
+        return {
+          top: 10,
+          left: 20,
+          width: 300,
+          height: 250
+        }
+      }
+    });
   });
 
   afterEach(function () {
     mockGpt.enable();
+    sandbox.restore();
   });
   describe('isBidRequestValid method', function () {
     describe('returns true', function () {
@@ -328,9 +331,13 @@ describe('Seedtag Adapter', function () {
     });
 
     describe('BidRequests params', function () {
-      const request = spec.buildRequests(validBidRequests, bidderRequest);
-      const data = JSON.parse(request.data);
-      const bidRequests = data.bidRequests;
+      let request, data, bidRequests;
+      beforeEach(() => {
+        request = spec.buildRequests(validBidRequests, bidderRequest);
+        data = JSON.parse(request.data);
+        bidRequests = data.bidRequests;
+      });
+
       it('should request a Banner', function () {
         const bannerBid = bidRequests[0];
         expect(bannerBid.id).to.equal('30b31c1838de1e');
@@ -369,27 +376,21 @@ describe('Seedtag Adapter', function () {
         const bidRequests = data.bidRequests;
         const bannerBid = bidRequests[0];
 
-        // on some CI, the DOM is not initialized, so we need to check if the slot is available
-        const slot = document.getElementById(adUnitCode)
-        if (slot) {
-          expect(bannerBid).to.have.property('geom')
-
-          const params = [['width', 300], ['height', 250], ['top', 10], ['left', 20], ['scrollY', 0]]
-          params.forEach(([param, value]) => {
-            expect(bannerBid.geom).to.have.property(param)
-            expect(bannerBid.geom[param]).to.be.a('number')
-            expect(bannerBid.geom[param]).to.be.equal(value)
-          })
-
-          expect(bannerBid.geom).to.have.property('viewport')
-          const viewportParams = ['width', 'height']
-          viewportParams.forEach(param => {
-            expect(bannerBid.geom.viewport).to.have.property(param)
-            expect(bannerBid.geom.viewport[param]).to.be.a('number')
-          })
-        } else {
-          expect(bannerBid).to.not.have.property('geom')
-        }
+        expect(bannerBid).to.have.property('geom')
+
+        const params = [['width', 300], ['height', 250], ['top', 10], ['left', 20], ['scrollY', 0]]
+        params.forEach(([param, value]) => {
+          expect(bannerBid.geom).to.have.property(param)
+          expect(bannerBid.geom[param]).to.be.a('number')
+          expect(bannerBid.geom[param]).to.be.equal(value)
+        })
+
+        expect(bannerBid.geom).to.have.property('viewport')
+        const viewportParams = ['width', 'height']
+        viewportParams.forEach(param => {
+          expect(bannerBid.geom.viewport).to.have.property(param)
+          expect(bannerBid.geom.viewport[param]).to.be.a('number')
+        })
       })
 
       it('should have bidfloor parameter if available', function () {
diff --git a/test/spec/modules/undertoneBidAdapter_spec.js b/test/spec/modules/undertoneBidAdapter_spec.js
index ed531371af7..b7ad994dc96 100644
--- a/test/spec/modules/undertoneBidAdapter_spec.js
+++ b/test/spec/modules/undertoneBidAdapter_spec.js
@@ -2,6 +2,8 @@ import {expect} from 'chai';
 import {spec} from 'modules/undertoneBidAdapter.js';
 import {BANNER, VIDEO} from '../../../src/mediaTypes.js';
 import {deepClone, getWinDimensions} from '../../../src/utils.js';
+import * as adUnits from 'src/utils/adUnits';
+import {getAdUnitElement} from 'src/utils/adUnits';
 
 const URL = 'https://hb.undertone.com/hb';
 const BIDDER_CODE = 'undertone';
@@ -314,7 +316,7 @@ describe('Undertone Adapter', () => {
       };
 
       sandbox = sinon.createSandbox();
-      sandbox.stub(document, 'getElementById').withArgs('div-gpt-ad-1460505748561-0').returns(element);
+      sandbox.stub(adUnits, 'getAdUnitElement').returns(element);
     });
 
     afterEach(function() {
diff --git a/test/spec/modules/visxBidAdapter_spec.js b/test/spec/modules/visxBidAdapter_spec.js
index a24f537625e..db7c01d7067 100755
--- a/test/spec/modules/visxBidAdapter_spec.js
+++ b/test/spec/modules/visxBidAdapter_spec.js
@@ -8,6 +8,7 @@ import { mergeDeep } from '../../../src/utils.js';
 import { setConfig as setCurrencyConfig } from '../../../modules/currency.js';
 import { addFPDToBidderRequest } from '../../helpers/fpd.js';
 import {getGlobal} from '../../../src/prebidGlobal.js';
+import * as adUnits from 'src/utils/adUnits';
 
 describe('VisxAdapter', function () {
   const adapter = newBidder(spec);
@@ -1069,13 +1070,9 @@ describe('VisxAdapter', function () {
 
     before(function() {
       sandbox = sinon.createSandbox();
-      documentStub = sandbox.stub(document, 'getElementById');
-      documentStub.withArgs('visx-adunit-code-1').returns({
-        id: 'visx-adunit-code-1'
-      });
-      documentStub.withArgs('visx-adunit-element-2').returns({
-        id: 'visx-adunit-element-2'
-      });
+      sandbox.stub(adUnits, 'getAdUnitElement').callsFake(({adUnitCode}) => {
+        return ['visx-adunit-code-1', 'visx-adunit-code-2'].includes(adUnitCode);
+      })
 
       getGlobal().bidderSettings = {
         visx: {
diff --git a/test/spec/unit/core/adapterManager_spec.js b/test/spec/unit/core/adapterManager_spec.js
index 0be07704ed2..f3481950db4 100644
--- a/test/spec/unit/core/adapterManager_spec.js
+++ b/test/spec/unit/core/adapterManager_spec.js
@@ -32,6 +32,7 @@ import {
   TRACKER_METHOD_IMG,
   TRACKER_METHOD_JS
 } from '../../../../src/eventTrackers.js';
+import 'src/prebid.js';
 var events = require('../../../../src/events.js');
 
 const CONFIG = {
@@ -1814,6 +1815,18 @@ describe('adapterManager tests', function () {
       expect(sizes1).not.to.deep.equal(sizes2);
     });
 
+    it('should transfer element from ad unit', () => {
+      adUnits[0].element = 'test';
+      const requests = makeBidRequests();
+      requests.flatMap(req => req.bids).forEach(bidRequest => {
+        if (bidRequest.adUnitCode === adUnits[0].code) {
+          expect(bidRequest.element).to.equal('test');
+        } else {
+          expect(bidRequest.element).to.not.exist;
+        }
+      });
+    })
+
     it('should transfer deferBilling from ad unit', () => {
       adUnits[0].deferBilling = true;
       const requests = makeBidRequests();
diff --git a/test/spec/unit/secureCreatives_spec.js b/test/spec/unit/secureCreatives_spec.js
index 9e3f2cab132..ea564e1f923 100644
--- a/test/spec/unit/secureCreatives_spec.js
+++ b/test/spec/unit/secureCreatives_spec.js
@@ -10,6 +10,7 @@ import {config as configObj} from 'src/config.js';
 import * as creativeRenderers from 'src/creativeRenderers.js';
 import 'src/prebid.js';
 import 'modules/nativeRendering.js';
+import * as adUnits from 'src/utils/adUnits';
 
 import {expect} from 'chai';
 
diff --git a/test/spec/utils/adUnits_spec.js b/test/spec/utils/adUnits_spec.js
new file mode 100644
index 00000000000..89e11232359
--- /dev/null
+++ b/test/spec/utils/adUnits_spec.js
@@ -0,0 +1,40 @@
+import {getAdUnitElement} from '../../../src/utils/adUnits.js';
+
+describe('ad unit utils', () => {
+  let sandbox;
+  beforeEach(() => {
+    sandbox = sinon.createSandbox();
+  });
+  afterEach(() => {
+    sandbox.restore();
+  });
+  describe('getAdUnitElement', () => {
+    beforeEach(() => {
+      sandbox.stub(document, 'getElementById').callsFake((id) => ({id}));
+    });
+    it('should return null on invalid input', () => {
+      expect(getAdUnitElement({})).to.eql(null);
+    });
+    it('should prefer element', () => {
+      expect(getAdUnitElement({
+        element: 'explicit',
+        code: 'ignored',
+        adUnitCode: 'ignored'
+      })).to.eql('explicit');
+    });
+    it('should fallback to code as id', () => {
+      expect(getAdUnitElement({
+        code: 'au'
+      })).to.eql({
+        id: 'au'
+      });
+    });
+    it('should fallback to adUnitCode as id', () => {
+      expect(getAdUnitElement({
+        adUnitCode: 'au'
+      })).to.eql({
+        id: 'au'
+      })
+    })
+  });
+});