diff --git a/modules/prebidServerBidAdapter/index.js b/modules/prebidServerBidAdapter/index.js
index 5d23a0366eab..7a1ff94644d6 100644
--- a/modules/prebidServerBidAdapter/index.js
+++ b/modules/prebidServerBidAdapter/index.js
@@ -355,10 +355,8 @@ const LEGACY_PROTOCOL = {
  * Protocol spec for OpenRTB endpoint
  * e.g., https://<prebid-server-url>/v1/openrtb2/auction
  */
+let bidIdMap = {};
 const OPEN_RTB_PROTOCOL = {
-
-  bidMap: {},
-
   buildRequest(s2sBidRequest, bidRequests, adUnits) {
     let imps = [];
     let aliases = {};
@@ -368,8 +366,7 @@ const OPEN_RTB_PROTOCOL = {
       adUnit.bids.forEach(bid => {
         // OpenRTB response contains the adunit code and bidder name. These are
         // combined to create a unique key for each bid since an id isn't returned
-        const key = `${adUnit.code}${bid.bidder}`;
-        this.bidMap[key] = bid;
+        bidIdMap[`${adUnit.code}${bid.bidder}`] = bid.bid_id;
 
         // check for and store valid aliases to add to the request
         if (adaptermanager.aliasRegistry[bid.bidder]) {
@@ -481,17 +478,22 @@ const OPEN_RTB_PROTOCOL = {
       // a seatbid object contains a `bid` array and a `seat` string
       response.seatbid.forEach(seatbid => {
         (seatbid.bid || []).forEach(bid => {
-          const bidRequest = utils.getBidRequest(
-            this.bidMap[`${bid.impid}${seatbid.seat}`].bid_id,
-            bidderRequests
-          );
+          let bidRequest;
+          let key = `${bid.impid}${seatbid.seat}`;
+          if (bidIdMap[key]) {
+            bidRequest = utils.getBidRequest(
+              bidIdMap[key],
+              bidderRequests
+            );
+          }
 
           const cpm = bid.price;
           const status = cpm !== 0 ? STATUS.GOOD : STATUS.NO_BID;
-          let bidObject = bidfactory.createBid(status, bidRequest);
+          let bidObject = bidfactory.createBid(status, bidRequest || {
+            bidder: seatbid.seat,
+            src: TYPE
+          });
 
-          bidObject.source = TYPE;
-          bidObject.bidderCode = seatbid.seat;
           bidObject.cpm = cpm;
 
           let serverResponseTimeMs = utils.deepAccess(response, ['ext', 'responsetimemillis', seatbid.seat].join('.'));
diff --git a/src/adaptermanager.js b/src/adaptermanager.js
index 32cbc55cd8fe..8d07e0ccacc5 100644
--- a/src/adaptermanager.js
+++ b/src/adaptermanager.js
@@ -47,7 +47,7 @@ function getLabels(bidOrAdUnit, activeLabels) {
   return {labelAll: false, labels: bidOrAdUnit.labelAny, activeLabels};
 }
 
-function getBids({bidderCode, auctionId, bidderRequestId, adUnits, labels}) {
+function getBids({bidderCode, auctionId, bidderRequestId, adUnits, labels, src}) {
   return adUnits.reduce((result, adUnit) => {
     let {
       active,
@@ -111,6 +111,7 @@ function getBids({bidderCode, auctionId, bidderRequestId, adUnits, labels}) {
               bidId: bid.bid_id || utils.getUniqueIdentifierStr(),
               bidderRequestId,
               auctionId,
+              src,
               bidRequestsCount: adunitCounter.getCounter(adUnit.code),
             }));
           }
@@ -207,7 +208,7 @@ exports.makeBidRequests = function(adUnits, auctionStart, auctionId, cbTimeout,
         auctionId,
         bidderRequestId,
         tid,
-        bids: getBids({bidderCode, auctionId, bidderRequestId, 'adUnits': utils.deepClone(adUnitsS2SCopy), labels}),
+        bids: getBids({bidderCode, auctionId, bidderRequestId, 'adUnits': utils.deepClone(adUnitsS2SCopy), labels, src: CONSTANTS.S2S.SRC}),
         auctionStart: auctionStart,
         timeout: _s2sConfig.timeout,
         src: CONSTANTS.S2S.SRC,
@@ -242,7 +243,7 @@ exports.makeBidRequests = function(adUnits, auctionStart, auctionId, cbTimeout,
       bidderCode,
       auctionId,
       bidderRequestId,
-      bids: getBids({bidderCode, auctionId, bidderRequestId, 'adUnits': utils.deepClone(adUnitsClientCopy), labels}),
+      bids: getBids({bidderCode, auctionId, bidderRequestId, 'adUnits': utils.deepClone(adUnitsClientCopy), labels, src: 'client'}),
       auctionStart: auctionStart,
       timeout: cbTimeout,
       refererInfo