diff --git a/libraries/intentIqConstants/intentIqConstants.js b/libraries/intentIqConstants/intentIqConstants.js
index 6bcf994d2b4..432ea6ff6a4 100644
--- a/libraries/intentIqConstants/intentIqConstants.js
+++ b/libraries/intentIqConstants/intentIqConstants.js
@@ -9,7 +9,7 @@ export const BLACK_LIST = "L";
 export const CLIENT_HINTS_KEY = "_iiq_ch";
 export const EMPTY = "EMPTY";
 export const GVLID = "1323";
-export const VERSION = 0.33;
+export const VERSION = 0.35;
 export const PREBID = "pbjs";
 export const HOURS_24 = 86400000;
 export const HOURS_72 = HOURS_24 * 3;
diff --git a/modules/intentIqAnalyticsAdapter.js b/modules/intentIqAnalyticsAdapter.js
index bf179d3e880..f411b773169 100644
--- a/modules/intentIqAnalyticsAdapter.js
+++ b/modules/intentIqAnalyticsAdapter.js
@@ -330,27 +330,13 @@ function fillEidsData(result) {
 function prepareData(data, result) {
   const adTypeValue = data.adType || data.mediaType;
 
-  if (data.bidderCode) {
-    result.bidderCode = data.bidderCode;
-  }
-  if (data.cpm) {
-    result.cpm = data.cpm;
-  }
-  if (data.currency) {
-    result.currency = data.currency;
-  }
-  if (data.originalCpm) {
-    result.originalCpm = data.originalCpm;
-  }
-  if (data.originalCurrency) {
-    result.originalCurrency = data.originalCurrency;
-  }
-  if (data.status) {
-    result.status = data.status;
-  }
-  if (data.size) {
-    result.size = data.size;
-  }
+  if (data.bidderCode) result.bidderCode = data.bidderCode;
+  if (data.cpm) result.cpm = data.cpm;
+  if (data.currency) result.currency = data.currency;
+  if (data.originalCpm) result.originalCpm = data.originalCpm;
+  if (data.originalCurrency) result.originalCurrency = data.originalCurrency;
+  if (data.status) result.status = data.status;
+  if (data.size) result.size = data.size;
   if (typeof data.pos === 'number') {
     result.pos = data.pos;
   } else if (data.adUnitCode) {
@@ -360,9 +346,7 @@ function prepareData(data, result) {
 
   result.prebidAuctionId = data.auctionId || data.prebidAuctionId;
 
-  if (adTypeValue) {
-    result[PARAMS_NAMES.adType] = adTypeValue;
-  }
+  if (adTypeValue) result[PARAMS_NAMES.adType] = adTypeValue;
 
   switch (iiqAnalyticsAnalyticsAdapter.initOptions.adUnitConfig) {
     case 1:
@@ -387,7 +371,8 @@ function prepareData(data, result) {
   }
 
   result.biddingPlatformId = data.biddingPlatformId || 1;
-  result.partnerAuctionId = 'BW';
+
+  if (data?.partnerAuctionId) result.partnerAuctionId = data.partnerAuctionId;
 }
 
 function extractPlacementId(data) {
@@ -408,7 +393,6 @@ function getDefaultDataObject() {
   return {
     inbbl: false,
     pbjsver: prebidVersion,
-    partnerAuctionId: 'BW',
     reportSource: 'pbjs',
     jsversion: VERSION,
     partnerId: -1,
@@ -424,6 +408,7 @@ function constructFullUrl(data) {
   const reportMethod = iiqAnalyticsAnalyticsAdapter.initOptions.reportMethod;
   const partnerData = window[identityGlobalName]?.partnerData;
   const currentBrowserLowerCase = detectBrowser();
+  const partnerAuctionId = data?.partnerAuctionId;
   data = btoa(JSON.stringify(data));
   report.push(data);
 
@@ -433,8 +418,13 @@ function constructFullUrl(data) {
   let url =
         baseUrl +
         '?pid=' +
-        iiqAnalyticsAnalyticsAdapter.initOptions.partner +
-        '&mct=1' +
+        iiqAnalyticsAnalyticsAdapter.initOptions.partner;
+  if (partnerAuctionId) {
+    url +=
+          '&paucid=' +
+          encodeURIComponent(JSON.stringify([partnerAuctionId]));
+  }
+  url += '&mct=1' +
         (iiqAnalyticsAnalyticsAdapter.initOptions?.fpid
           ? '&iiqid=' + encodeURIComponent(iiqAnalyticsAnalyticsAdapter.initOptions.fpid.pcid)
           : '') +
@@ -451,17 +441,17 @@ function constructFullUrl(data) {
         (cmpData.gdprString ? '&gdpr_consent=' + encodeURIComponent(cmpData.gdprString) + '&gdpr=1' : '&gdpr=0');
   url = appendSPData(url, partnerData);
   url = appendVrrefAndFui(url, iiqAnalyticsAnalyticsAdapter.initOptions.domainName);
-
-  if (reportMethod === 'POST') {
-    return { url, method: 'POST', payload: JSON.stringify(report) };
-  }
-  url += '&payload=' + encodeURIComponent(JSON.stringify(report));
   url = handleAdditionalParams(
     currentBrowserLowerCase,
     url,
     2,
     iiqAnalyticsAnalyticsAdapter.initOptions.additionalParams
   );
+
+  if (reportMethod === 'POST') {
+    return { url, method: 'POST', payload: JSON.stringify(report) };
+  }
+  url += '&payload=' + encodeURIComponent(JSON.stringify(report));
   return { url, method: 'GET' };
 }
 
diff --git a/test/spec/modules/intentIqAnalyticsAdapter_spec.js b/test/spec/modules/intentIqAnalyticsAdapter_spec.js
index 8389ca4a644..0a31b43b5f5 100644
--- a/test/spec/modules/intentIqAnalyticsAdapter_spec.js
+++ b/test/spec/modules/intentIqAnalyticsAdapter_spec.js
@@ -1020,4 +1020,56 @@ describe("IntentIQ tests all", function () {
     // Verify that the group from options is used in the payload
     expect(decodedPayload).to.have.property("abGroup", providedGroup);
   });
+
+  it("should include partnerAuctionId in query params and payload if provided by partner (GET)", function () {
+    const partnerAuctionId = "TEST-PAUCID-123";
+    enableAnalyticWithSpecialOptions({
+      manualWinReportEnabled: true,
+      reportMethod: "GET"
+    });
+
+    window[`intentIqAnalyticsAdapter_${partner}`].reportExternalWin({
+      cpm: 1,
+      currency: "USD",
+      adType: "banner",
+      partnerAuctionId
+    });
+
+    const request = server.requests[0];
+    const url = new URL(request.url);
+    const paucidParam = url.searchParams.get("paucid");
+    const payloadEncoded = url.searchParams.get("payload");
+    const payloadDecoded = JSON.parse(
+      atob(JSON.parse(payloadEncoded)[0])
+    );
+
+    expect(payloadEncoded).to.be.a('string');
+    expect(JSON.parse(paucidParam)).to.deep.equal([partnerAuctionId]);
+    expect(payloadDecoded.partnerAuctionId).to.equal(partnerAuctionId);
+  });
+
+  it("should include partnerAuctionId in query params and payload if provided by partner (POST)", function () {
+    const partnerAuctionId = "TEST-PAUCID-123";
+    enableAnalyticWithSpecialOptions({
+      manualWinReportEnabled: true,
+      reportMethod: "POST"
+    });
+
+    window[`intentIqAnalyticsAdapter_${partner}`].reportExternalWin({
+      cpm: 1,
+      currency: "USD",
+      adType: "banner",
+      partnerAuctionId
+    });
+
+    const request = server.requests[0];
+    const url = new URL(request.url);
+    const paucidParam = url.searchParams.get("paucid");
+    const bodyArray = JSON.parse(request.requestBody);
+    const payloadDecoded = JSON.parse(atob(bodyArray[0]));
+
+    expect(request.requestBody).to.be.a('string');
+    expect(JSON.parse(paucidParam)).to.deep.equal([partnerAuctionId]);
+    expect(payloadDecoded.partnerAuctionId).to.equal(partnerAuctionId);
+  });
 });