diff --git a/modules/rtbhouseBidAdapter.js b/modules/rtbhouseBidAdapter.js
index 7e2a7da3b61..4f8c8c1c550 100644
--- a/modules/rtbhouseBidAdapter.js
+++ b/modules/rtbhouseBidAdapter.js
@@ -115,10 +115,11 @@ export const spec = {
     let computedEndpointUrl = ENDPOINT_URL;
 
     if (bidderRequest.paapi?.enabled) {
-      const fledgeConfig = config.getConfig('fledgeConfig') || {
+      const fromConfig = config.getConfig('paapiConfig') || config.getConfig('fledgeConfig') || { sellerTimeout: 500 };
+      const fledgeConfig = {
         seller: FLEDGE_SELLER_URL,
         decisionLogicUrl: FLEDGE_DECISION_LOGIC_URL,
-        sellerTimeout: 500
+        ...fromConfig
       };
       mergeDeep(request, { ext: { fledge_config: fledgeConfig } });
       computedEndpointUrl = FLEDGE_ENDPOINT_URL;
@@ -165,7 +166,6 @@ export const spec = {
   interpretResponse: function (serverResponse, originalRequest) {
     let bids;
 
-    const fledgeInterestGroupBuyers = config.getConfig('fledgeConfig.interestGroupBuyers') || [];
     const responseBody = serverResponse.body;
     let fledgeAuctionConfigs = null;
 
@@ -173,24 +173,35 @@ export const spec = {
       // we have fledge response
       // mimic the original response ([{},...])
       bids = this.interpretOrtbResponse({ body: responseBody.seatbid[0]?.bid }, originalRequest);
-
-      const seller = responseBody.ext.seller;
-      const decisionLogicUrl = responseBody.ext.decisionLogicUrl;
-      const sellerTimeout = 'sellerTimeout' in responseBody.ext ? { sellerTimeout: responseBody.ext.sellerTimeout } : {};
+      const paapiAdapterConfig = config.getConfig('paapiConfig') || config.getConfig('fledgeConfig') || {};
+      const fledgeInterestGroupBuyers = paapiAdapterConfig.interestGroupBuyers || [];
+      // values from the response.ext are the most important
+      const {
+        decisionLogicUrl = paapiAdapterConfig.decisionLogicUrl || paapiAdapterConfig.decisionLogicURL ||
+          FLEDGE_DECISION_LOGIC_URL,
+        seller = paapiAdapterConfig.seller || FLEDGE_SELLER_URL,
+        sellerTimeout = 500
+      } = responseBody.ext;
+
+      const fledgeConfig = {
+        seller,
+        decisionLogicUrl,
+        decisionLogicURL: decisionLogicUrl,
+        sellerTimeout
+      };
+      // fledgeConfig settings are more important; other paapiAdapterConfig settings are facultative
+      mergeDeep(fledgeConfig, paapiAdapterConfig, fledgeConfig);
       responseBody.ext.igbid.forEach((igbid) => {
-        const perBuyerSignals = {};
+        const perBuyerSignals = {...fledgeConfig.perBuyerSignals}; // may come from paapiAdapterConfig
         igbid.igbuyer.forEach(buyerItem => {
           perBuyerSignals[buyerItem.igdomain] = buyerItem.buyersignal
         });
         fledgeAuctionConfigs = fledgeAuctionConfigs || {};
-        fledgeAuctionConfigs[igbid.impid] = mergeDeep(
+        fledgeAuctionConfigs[igbid.impid] = mergeDeep({}, fledgeConfig,
           {
-            seller,
-            decisionLogicUrl,
-            interestGroupBuyers: [...fledgeInterestGroupBuyers, ...Object.keys(perBuyerSignals)],
+            interestGroupBuyers: [...new Set([...fledgeInterestGroupBuyers, ...Object.keys(perBuyerSignals)])],
             perBuyerSignals,
-          },
-          sellerTimeout
+          }
         );
       });
     } else {
diff --git a/test/spec/modules/rtbhouseBidAdapter_spec.js b/test/spec/modules/rtbhouseBidAdapter_spec.js
index cc303dc2f96..f3f9ce8616f 100644
--- a/test/spec/modules/rtbhouseBidAdapter_spec.js
+++ b/test/spec/modules/rtbhouseBidAdapter_spec.js
@@ -460,7 +460,7 @@ describe('RTBHouseAdapter', () => {
         let bidRequest = Object.assign([], bidRequests);
         delete bidRequest[0].params.test;
         config.setConfig({ fledgeConfig: true });
-        const request = spec.buildRequests(bidRequest, { ...bidderRequest, paapi: {enabled: true} });
+        const request = spec.buildRequests(bidRequest, { ...bidderRequest, paapi: { enabled: true } });
         expect(request.url).to.equal('https://prebid-eu.creativecdn.com/bidder/prebidfledge/bids');
         expect(request.method).to.equal('POST');
       });
@@ -470,7 +470,7 @@ describe('RTBHouseAdapter', () => {
         delete bidRequest[0].params.test;
 
         config.setConfig({ fledgeConfig: false });
-        const request = spec.buildRequests(bidRequest, {...bidderRequest, paapi: {enabled: true}});
+        const request = spec.buildRequests(bidRequest, { ...bidderRequest, paapi: {enabled: true} });
         const data = JSON.parse(request.data);
         expect(data.ext).to.exist.and.to.be.a('object');
         expect(data.ext.fledge_config).to.exist.and.to.be.a('object');
@@ -480,7 +480,7 @@ describe('RTBHouseAdapter', () => {
         expect(data.ext.fledge_config.sellerTimeout).to.equal(500);
       });
 
-      it('sets a fledgeConfig object values when available from config', function () {
+      it('sets request.ext.fledge_config object values when available from fledgeConfig', function () {
         let bidRequest = Object.assign([], bidRequests);
         delete bidRequest[0].params.test;
 
@@ -490,7 +490,7 @@ describe('RTBHouseAdapter', () => {
             decisionLogicUrl: 'https://sellers.domain/decision.url'
           }
         });
-        const request = spec.buildRequests(bidRequest, {...bidderRequest, paapi: {enabled: true}});
+        const request = spec.buildRequests(bidRequest, { ...bidderRequest, paapi: {enabled: true} });
         const data = JSON.parse(request.data);
         expect(data.ext).to.exist.and.to.be.a('object');
         expect(data.ext.fledge_config).to.exist.and.to.be.a('object');
@@ -500,6 +500,49 @@ describe('RTBHouseAdapter', () => {
         expect(data.ext.fledge_config.sellerTimeout).to.not.exist;
       });
 
+      it('sets request.ext.fledge_config object values when available from paapiConfig', function () {
+        let bidRequest = Object.assign([], bidRequests);
+        delete bidRequest[0].params.test;
+
+        config.setConfig({
+          paapiConfig: {
+            seller: 'https://sellers.domain',
+            decisionLogicUrl: 'https://sellers.domain/decision.url'
+          }
+        });
+        const request = spec.buildRequests(bidRequest, { ...bidderRequest, paapi: {enabled: true} });
+        const data = JSON.parse(request.data);
+        expect(data.ext).to.exist.and.to.be.a('object');
+        expect(data.ext.fledge_config).to.exist.and.to.be.a('object');
+        expect(data.ext.fledge_config).to.contain.keys('seller', 'decisionLogicUrl');
+        expect(data.ext.fledge_config.seller).to.equal('https://sellers.domain');
+        expect(data.ext.fledge_config.decisionLogicUrl).to.equal('https://sellers.domain/decision.url');
+        expect(data.ext.fledge_config.sellerTimeout).to.not.exist;
+      });
+
+      it('sets request.ext.fledge_config object values when available from paapiConfig rather than from fledgeConfig if both exist', function () {
+        let bidRequest = Object.assign([], bidRequests);
+        delete bidRequest[0].params.test;
+
+        config.setConfig({
+          paapiConfig: {
+            seller: 'https://paapiconfig.sellers.domain',
+            decisionLogicUrl: 'https://paapiconfig.sellers.domain/decision.url'
+          },
+          fledgeConfig: {
+            seller: 'https://fledgeconfig.sellers.domain',
+            decisionLogicUrl: 'https://fledgeconfig.sellers.domain/decision.url'
+          }
+        });
+        const request = spec.buildRequests(bidRequest, { ...bidderRequest, paapi: {enabled: true} });
+        const data = JSON.parse(request.data);
+        expect(data.ext).to.exist.and.to.be.a('object');
+        expect(data.ext.fledge_config).to.exist.and.to.be.a('object');
+        expect(data.ext.fledge_config).to.contain.keys('seller', 'decisionLogicUrl');
+        expect(data.ext.fledge_config.seller).to.equal('https://paapiconfig.sellers.domain');
+        expect(data.ext.fledge_config.decisionLogicUrl).to.equal('https://paapiconfig.sellers.domain/decision.url');
+      });
+
       it('when FLEDGE is disabled, should not send imp.ext.ae', function () {
         let bidRequest = Object.assign([], bidRequests);
         delete bidRequest[0].params.test;
@@ -788,6 +831,36 @@ describe('RTBHouseAdapter', () => {
       });
     });
 
+    context('when the response contains FLEDGE auction config and bid request has additional signals in paapiConfig', function () {
+      let bidderRequest;
+      config.setConfig({
+        paapiConfig: {
+          interestGroupBuyers: ['https://buyer1.com'],
+          perBuyerSignals: {
+            'https://buyer1.com': { signal: 1 }
+          },
+          customSignal: 1
+        }
+      });
+      let response = spec.interpretResponse({body: fledgeResponse}, {bidderRequest});
+
+      it('should have 2 buyers in interestGroupBuyers', function () {
+        expect(response.paapi[0].config.interestGroupBuyers.length).to.equal(2);
+        expect(response.paapi[0].config.interestGroupBuyers).to.have.members(['https://buyer1.com', 'https://buyer-domain.com']);
+      });
+
+      it('should have 2 perBuyerSignals with proper values', function () {
+        expect(response.paapi[0].config.perBuyerSignals).to.contain.keys('https://buyer1.com', 'https://buyer-domain.com');
+        expect(response.paapi[0].config.perBuyerSignals['https://buyer1.com']).to.deep.equal({ signal: 1 });
+        expect(response.paapi[0].config.perBuyerSignals['https://buyer-domain.com']).to.deep.equal({});
+      });
+
+      it('should contain any custom signal passed via paapiConfig', function () {
+        expect(response.paapi[0].config).to.contain.keys('customSignal');
+        expect(response.paapi[0].config.customSignal).to.equal(1);
+      });
+    });
+
     context('when the response contains DSA object', function () {
       it('should get correct bid response', function () {
         const dsa = {