diff --git a/modules/pubxaiAnalyticsAdapter.js b/modules/pubxaiAnalyticsAdapter.js
index f8ec72cde75..ad682a8adf8 100644
--- a/modules/pubxaiAnalyticsAdapter.js
+++ b/modules/pubxaiAnalyticsAdapter.js
@@ -77,6 +77,7 @@ export const auctionCache = new Proxy(
             consentTypes: Object.keys(getGlobal().getConsentMetadata?.() || {}),
           },
           pmacDetail: JSON.parse(storage.getDataFromLocalStorage('pubx:pmac')) || {}, // {auction_1: {floor:0.23,maxBid:0.34,bidCount:3},auction_2:{floor:0.13,maxBid:0.14,bidCount:2}
+          extraData: JSON.parse(storage.getDataFromLocalStorage('pubx:extraData')) || {},
           initOptions: {
             ...initOptions,
             auctionId: name, // back-compat
@@ -248,6 +249,7 @@ const prepareSend = (auctionId) => {
         'userDetail',
         'consentDetail',
         'pmacDetail',
+        'extraData',
         'initOptions',
       ],
       eventType: 'win',
@@ -263,6 +265,7 @@ const prepareSend = (auctionId) => {
         'userDetail',
         'consentDetail',
         'pmacDetail',
+        'extraData',
         'initOptions',
       ],
       eventType: 'auction',