diff --git a/modules/jixieBidAdapter.js b/modules/jixieBidAdapter.js
index de509853fed..700d3276e06 100644
--- a/modules/jixieBidAdapter.js
+++ b/modules/jixieBidAdapter.js
@@ -6,6 +6,7 @@ import { BANNER, VIDEO } from '../src/mediaTypes.js';
 import { ajax } from '../src/ajax.js';
 import { getRefererInfo } from '../src/refererDetection.js';
 import { Renderer } from '../src/Renderer.js';
+import {createEidsArray} from './userId/eids.js';
 
 const BIDDER_CODE = 'jixie';
 export const storage = getStorageManager({bidderCode: BIDDER_CODE});
@@ -121,6 +122,17 @@ function getMiscDims_() {
   return ret;
 }
 
+/* function addUserId(eids, id, source, rti) {
+  if (id) {
+    if (rti) {
+      eids.push({ source, id, rti_partner: rti });
+    } else {
+      eids.push({ source, id });
+    }
+  }
+  return eids;
+} */
+
 // easier for replacement in the unit test
 export const internal = {
   getDevice: getDevice_,
@@ -163,7 +175,22 @@ export const spec = {
     }
 
     let ids = fetchIds_();
+    let eids = [];
     let miscDims = internal.getMiscDims();
+
+    // all available user ids are sent to our backend in the standard array layout:
+    if (validBidRequests[0].userId) {
+      let eids1 = createEidsArray(validBidRequests[0].userId);
+      if (eids1.length) {
+        eids = eids1;
+      }
+    }
+    // we want to send this blob of info to our backend:
+    let pg = config.getConfig('priceGranularity');
+    if (!pg) {
+      pg = {};
+    }
+
     let transformedParams = Object.assign({}, {
       auctionid: bidderRequest.auctionId,
       timeout: bidderRequest.timeout,
@@ -174,6 +201,8 @@ export const spec = {
       pageurl: miscDims.pageurl,
       mkeywords: miscDims.mkeywords,
       bids: bids,
+      eids: eids,
+      pricegranularity: pg,
       cfg: jixieCfgBlob
     }, ids);
     return Object.assign({}, {
diff --git a/modules/jixieBidAdapter.md b/modules/jixieBidAdapter.md
index d9c1f19541d..c0a1a965e87 100644
--- a/modules/jixieBidAdapter.md
+++ b/modules/jixieBidAdapter.md
@@ -7,6 +7,7 @@ Maintainer: contact@jixie.io
 # Description
 
 Module that connects to Jixie demand source to fetch bids.
+All prebid-supported user ids are sent to Jixie endpoint, if available. 
 
 # Test Parameters
 ```
diff --git a/test/spec/modules/jixieBidAdapter_spec.js b/test/spec/modules/jixieBidAdapter_spec.js
index 68de5c7a8fd..7af0372c22c 100644
--- a/test/spec/modules/jixieBidAdapter_spec.js
+++ b/test/spec/modules/jixieBidAdapter_spec.js
@@ -240,6 +240,102 @@ describe('jixie Adapter', function () {
       getLocalStorageStub.restore();
       miscDimsStub.restore();
     });// it
+
+    it('it should popular the pricegranularity when info is available', function () {
+      let content = {
+        'ranges': [{
+          'max': 12,
+          'increment': 0.5
+        },
+        {
+          'max': 5,
+          'increment': 0.1
+        }],
+        precision: 1
+      };
+      let getConfigStub = sinon.stub(config, 'getConfig');
+      getConfigStub.callsFake(function fakeFn(prop) {
+        if (prop == 'priceGranularity') {
+          return content;
+        }
+        return null;
+      });
+
+      const oneSpecialBidReq = Object.assign({}, bidRequests_[0]);
+      const request = spec.buildRequests([oneSpecialBidReq], bidderRequest_);
+      const payload = JSON.parse(request.data);
+      getConfigStub.restore();
+      expect(payload.pricegranularity).to.deep.include(content);
+    });
+
+    it('should populate eids when supported userIds are available', function () {
+      const oneSpecialBidReq = Object.assign({}, bidRequests_[0], {
+        userId: {
+          tdid: '11111111-2222-3333-4444-555555555555',
+          uid2: { id: 'AbCdEfGhIjKlMnO9qdQBW7qtMw8f1WTUvtkHe6u+fqLfhbtsqrJ697Z6YoI3IB9klGUv1wvlFIbwH7ELDlqQBGtj8AC1v7fMJ/Q45E7W90dts7UQLTDMLNmtHBRDXVb0Fpas4Vh3yN1jGVQNhzXC/RpGIVtZE8dCxcjfa7VfcTNcvxxxxx==' },
+          pubProvidedId: [{
+            source: 'puburl1.com',
+            uids: [{
+              id: 'pubid1',
+              atype: 1,
+              ext: {
+                stype: 'ppuid'
+              }
+            }]
+          }, {
+            source: 'puburl2.com',
+            uids: [{
+              id: 'pubid2'
+            }]
+          }]
+        }
+      });
+      const request = spec.buildRequests([oneSpecialBidReq], bidderRequest_);
+      const payload = JSON.parse(request.data);
+      expect(payload.eids).to.deep.include({
+        'source': 'adserver.org',
+        'uids': [
+          {
+            'id': '11111111-2222-3333-4444-555555555555',
+            'atype': 1,
+            'ext': {
+              'rtiPartner': 'TDID'
+            }
+          }
+        ]
+      });
+      expect(payload.eids).to.deep.include({
+        'source': 'uidapi.com',
+        'uids': [
+          {
+            'id': 'AbCdEfGhIjKlMnO9qdQBW7qtMw8f1WTUvtkHe6u+fqLfhbtsqrJ697Z6YoI3IB9klGUv1wvlFIbwH7ELDlqQBGtj8AC1v7fMJ/Q45E7W90dts7UQLTDMLNmtHBRDXVb0Fpas4Vh3yN1jGVQNhzXC/RpGIVtZE8dCxcjfa7VfcTNcvxxxxx==',
+            'atype': 3
+          }
+        ]
+      });
+
+      expect(payload.eids).to.deep.include({
+        'source': 'puburl1.com',
+        'uids': [
+          {
+            'id': 'pubid1',
+            'atype': 1,
+            'ext': {
+              'stype': 'ppuid'
+            }
+          }
+        ]
+      });
+
+      expect(payload.eids).to.deep.include({
+        'source': 'puburl2.com',
+        'uids': [
+          {
+            'id': 'pubid2'
+          }
+        ]
+      });
+    });
   });// describe
 
   /**