Policy CSP: WindowsPackageManager

The updates here are made as per policy id: 4251. Thanks!

windows/client-management/mdm/policy-configuration-service-provider.md

@@ -5173,6 +5173,13 @@ dfsdiscoverdc">ADMX_DFS/DFSDiscoverDC</a>
   </dd>
 </dl>
 
+### ADMX_WindowsPackageManager policies 
+<dl>
+  <dd>
+    <a href="/policy-csp-admx-windowspackagemanager.md#admx-windowspackagemanager-enableadditionalsources" id="admx-windowspackagemanager-enableadditionalsources">ADMX_WindowsPackageManager/EnableAdditionalSources</a>
+  </dd>
+</dl>
+
 ### ADMX_WindowsRemoteManagement policies  
 
 <dl>

windows/client-management/mdm/policy-csp-admx-windowspackagemanager.md

@@ -0,0 +1,88 @@
+---
+title: Policy CSP - ADMX_WindowsPackageManager
+description: Learn about the Policy CSP - ADMX_WindowsPackageManager.
+ms.author: aljupudi
+ms.localizationpriority: medium
+ms.topic: article
+ms.prod: w10
+ms.technology: windows
+author: aljupudi
+ms.date: 08/24/2022
+ms.reviewer: 
+manager: aaroncz
+---
+
+# Policy CSP - ADMX_WindowsPackageManager
+>[!TIP]
+> These are ADMX-backed policies and require a special SyncML format to enable or disable. For details, see [Understanding ADMX-backed policies](./understanding-admx-backed-policies.md).
+> 
+> You must specify the data type in the SyncML as <Format>chr</Format>. For an example SyncML, refer to [Enabling a policy](./understanding-admx-backed-policies.md#enabling-a-policy).
+> 
+> The payload of the SyncML must be XML-encoded; for this XML encoding, there are a variety of online encoders that you can use. To avoid encoding the payload, you can use CDATA if your MDM supports it. For more information, see [CDATA Sections](http://www.w3.org/TR/REC-xml/#sec-cdata-sect).
+
+
+<hr/>
+
+<!--Policies-->
+## ADMX_WindowsPackageManager policies  
+
+<dl>
+  <dd>
+    <a href="#admx-windowspackagemanager-enableadditionalsources">ADMX_WindowsPackageManager/EnableAdditionalSources</a>
+  </dd>
+</dl>
+
+
+<hr/>
+
+<!--Policy-->
+<a href="" id="admx-windowspackagemanager-enableadditionalsources"></a>**ADMX_WindowsPackageManager/EnableAdditionalSources**  
+
+<!--SupportedSKUs-->
+
+|Edition|Windows 10|Windows 11|
+|--- |--- |--- |
+|Home|No|No|
+|Pro|Yes|Yes|
+|Windows SE|Yes|Yes|
+|Business|Yes|Yes|
+|Enterprise|Yes|Yes|
+|Education|Yes|Yes|
+
+
+<!--/SupportedSKUs-->
+<hr/>
+
+<!--Scope-->
+[Scope](./policy-configuration-service-provider.md#policy-scope):
+
+> [!div class = "checklist"]
+> * Device
+
+<hr/>
+
+<!--/Scope-->
+<!--Description-->
+This policy controls additional sources approved for users to configure using [Windows Package Manager](/windows/package-manager/).
+
+If you do not configure this setting, users will be able to add or remove additional sources other than those configured by policy.
+
+If you enable this setting, only the sources specified can be added or removed from Windows Package Manager. The representation for each allowed source can be obtained from installed sources using [*winget source export*](/windows/package-manager/winget/).
+
+If you disable this setting, no additional sources can be configured by the user for Windows Package Manager.
+
+<!--/Description-->
+
+<!--ADMXBacked-->
+ADMX Info:  
+-   GP Friendly name: *Enable Additional Windows Package Manager Sources*
+-   GP name: *EnableAdditionalSources*
+-   GP path: *Administrative Templates\Windows Components\App Package Deployment*
+-   GP ADMX file name: *AppxPackageManager.admx*
+
+<!--/ADMXBacked-->
+<!--/Policy-->
+
+<hr/>
+
+<!--/Policies-->

windows/client-management/mdm/toc.yml

@@ -617,6 +617,8 @@ items:
                 href: policy-csp-admx-windowsmediadrm.md
               - name: ADMX_WindowsMediaPlayer
                 href: policy-csp-admx-windowsmediaplayer.md
+              - name: ADMX_WindowsPackageManager
+                href: policy-csp-admx-windowspackagemanager.md
               - name: ADMX_WindowsRemoteManagement
                 href: policy-csp-admx-windowsremotemanagement.md
               - name: ADMX_WindowsStore