Merge pull request #1557 from MicrosoftDocs/MDBranchDeliveryOptimizationPolicyCustomerIssue

Added a new option for DeliveryOptimization/DOGroupIdSource

windows/client-management/mdm/new-in-windows-mdm-enrollment-management.md

@@ -21,7 +21,7 @@ ms.date: 07/01/2019
 
 This topic provides information about what's new and breaking changes in Windows 10 mobile device management (MDM) enrollment and management experience across all Windows 10 devices.
 
-For details about Microsoft mobile device management protocols for Windows 10 see [\[MS-MDM\]: Mobile Device Management Protocol](https://go.microsoft.com/fwlink/p/?LinkId=619346) and [\[MS-MDE2\]: Mobile Device Enrollment Protocol Version 2]( http://go.microsoft.com/fwlink/p/?LinkId=619347). 
+For details about Microsoft mobile device management protocols for Windows 10 see [\[MS-MDM\]: Mobile Device Management Protocol](https://go.microsoft.com/fwlink/p/?LinkId=619346) and [\[MS-MDE2\]: Mobile Device Enrollment Protocol Version 2]( https://go.microsoft.com/fwlink/p/?LinkId=619347). 
 
 - **What’s new in MDM for Windows 10 versions**
   - [What’s new in MDM for Windows 10, version 1909](#whats-new-in-mdm-for-windows-10-version-1909)
@@ -58,6 +58,7 @@ For details about Microsoft mobile device management protocols for Windows 10 s
   - [What is dmwappushsvc?](#what-is-dmwappushsvc)
 
 - **Change history in MDM documentation**
+    - [November 2019](#november-2019)
     - [October 2019](#october-2019)
     - [September 2019](#september-2019)
     - [August 2019](#august-2019)
@@ -1934,6 +1935,12 @@ How do I turn if off? | The service can be stopped from the "Services" console o
 
 ## Change history in MDM documentation
 
+### November 2019
+
+|New or updated topic | Description|
+|--- | ---|
+|[Policy CSP - DeliveryOptimization](policy-csp-deliveryoptimization.md)|Added option 5 in the supported values list for DeliveryOptimization/DOGroupIdSource.|
+
 ### October 2019
 
 |New or updated topic | Description|

windows/client-management/mdm/policy-csp-deliveryoptimization.md

@@ -780,7 +780,7 @@ ADMX Info:
 
 <!--/Scope-->
 <!--Description-->
-Added in Windows 10, version 1803. Set this policy to restrict peer selection to a specific source. Options available are: 1 = AD Site, 2 = Authenticated domain SID, 3 = DHCP Option ID, 4 = DNS Suffix
+Added in Windows 10, version 1803. Set this policy to restrict peer selection to a specific source. Available options are: 1 = AD Site, 2 = Authenticated domain SID, 3 = DHCP Option ID, 4 = DNS Suffix, 5 = AAD.
 
 When set, the Group ID will be assigned automatically from the selected source.
 
@@ -790,6 +790,8 @@ The options set in this policy only apply to Group (2) download mode. If Group (
 
 For option 3 - DHCP Option ID, the client will query DHCP Option ID 234 and use the returned GUID value as the Group ID.
 
+Starting with Windows 10, version 1903, you can use the Azure Active Directory (AAD) Tenant ID as a means to define groups. To do this, set the value of DOGroupIdSource to 5.
+
 <!--/Description-->
 <!--ADMXMapped-->
 ADMX Info:  
@@ -807,6 +809,7 @@ The following list shows the supported values:
 -   2 - Authenticated domain SID
 -   3 - DHCP user option
 -   4 - DNS suffix
+-   5 - AAD
 
 <!--/SupportedValues-->
 <!--/Policy-->