diff --git a/modules/asoBidAdapter.js b/modules/asoBidAdapter.js
index 9469bc6b00c..83b182e4ca5 100644
--- a/modules/asoBidAdapter.js
+++ b/modules/asoBidAdapter.js
@@ -4,6 +4,7 @@ import {
   deepSetValue,
   getDNT,
   inIframe,
+  isArray,
   isFn,
   logWarn,
   parseSizesInput,
@@ -19,6 +20,7 @@ const BIDDER_CODE = 'aso';
 const DEFAULT_SERVER_URL = 'https://srv.aso1.net';
 const DEFAULT_SERVER_PATH = '/prebid/bidder';
 const OUTSTREAM_RENDERER_URL = 'https://acdn.adnxs.com/video/outstream/ANOutstreamVideo.js';
+const VERSION = '$prebid.version$_1.1';
 const TTL = 300;
 
 export const spec = {
@@ -59,7 +61,7 @@ export const spec = {
 
       serverRequests.push({
         method: 'POST',
-        url: getEnpoint(bidRequest),
+        url: getEndpoint(bidRequest),
         data: payload,
         options: {
           withCredentials: true,
@@ -272,11 +274,9 @@ function createVideoImp(bidRequest, videoParams) {
   return imp;
 }
 
-function getEnpoint(bidRequest) {
-  const serverUrl = bidRequest.params.serverUrl || DEFAULT_SERVER_URL;
-  const serverPath = bidRequest.params.serverPath || DEFAULT_SERVER_PATH;
-
-  return serverUrl + serverPath + '?zid=' + bidRequest.params.zone + '&pbjs=$prebid.version$';
+function getEndpoint(bidRequest) {
+  const serverUrl = bidRequest.params.server || DEFAULT_SERVER_URL;
+  return serverUrl + DEFAULT_SERVER_PATH + '?zid=' + bidRequest.params.zone + '&pbjs=' + VERSION;
 }
 
 function getConsentsIds(gdprConsent) {
@@ -341,6 +341,11 @@ function createBasePayload(bidRequest, bidderRequest) {
     deepSetValue(payload, 'user.ext.eids', eids);
   }
 
+  const schainData = deepAccess(bidRequest, 'schain.nodes');
+  if (isArray(schainData) && schainData.length > 0) {
+    deepSetValue(payload, 'source.ext.schain', bidRequest.schain);
+  }
+
   return payload;
 }
 
diff --git a/modules/asoBidAdapter.md b/modules/asoBidAdapter.md
index 32f4ebf5cef..f187389c5b5 100644
--- a/modules/asoBidAdapter.md
+++ b/modules/asoBidAdapter.md
@@ -14,12 +14,11 @@ For more information, please visit [Adserver.Online](https://adserver.online).
 
 # Parameters
 
-| Name          | Scope    | Description             | Example   | Type      |
-|---------------|----------|-------------------------|-----------|-----------|
-| `zone`        | required | Zone ID                 | `73815`   | `Integer` |
-| `attr`        | optional | Custom targeting params | `{keywords: ["a", "b"]}` | `Object` |
-
-
+| Name      | Scope    | Description             | Example                | Type       |
+|-----------|----------|-------------------------|------------------------|------------|
+| `zone`    | required | Zone ID                 | `73815`                | `Integer`  |
+| `attr`    | optional | Custom targeting params | `{foo: ["a", "b"]}`    | `Object`   |
+| `server`  | optional | Custom bidder endpoint  | `https://endpoint.url` | `String`   |
 
 # Test parameters for banner
 ```js
diff --git a/test/spec/modules/asoBidAdapter_spec.js b/test/spec/modules/asoBidAdapter_spec.js
index 5ac44cb1db4..88016d1902c 100644
--- a/test/spec/modules/asoBidAdapter_spec.js
+++ b/test/spec/modules/asoBidAdapter_spec.js
@@ -125,7 +125,7 @@ describe('Adserver.Online bidding adapter', function () {
       expect(parsedRequestUrl.pathname).to.equal('/prebid/bidder');
 
       const query = parsedRequestUrl.search;
-      expect(query.pbjs).to.equal('$prebid.version$');
+      expect(query.pbjs).to.contain('$prebid.version$');
       expect(query.zid).to.equal('1');
 
       expect(request.data).to.exist;
@@ -162,7 +162,7 @@ describe('Adserver.Online bidding adapter', function () {
       expect(parsedRequestUrl.pathname).to.equal('/prebid/bidder');
 
       const query = parsedRequestUrl.search;
-      expect(query.pbjs).to.equal('$prebid.version$');
+      expect(query.pbjs).to.contain('$prebid.version$');
       expect(query.zid).to.equal('2');
 
       expect(request.data).to.not.be.empty;