diff --git a/src/Websites/Websites/ChangeLog.md b/src/Websites/Websites/ChangeLog.md
index 3478e8c6d78c..48ea72568500 100644
--- a/src/Websites/Websites/ChangeLog.md
+++ b/src/Websites/Websites/ChangeLog.md
@@ -18,6 +18,7 @@
         - Additional information about change #1
 -->
 ## Upcoming Release
+* Updated 'New-AzWebAppContainerPSSession' with CmdletDeprecation Attribute [#16646]
 * Updated `Restore-AzDeletedWebApp` to fix issue that prevents the cmdlet from working on hosts with a locale is anything different from `en-US`
 
 ## Version 2.11.0
diff --git a/src/Websites/Websites/Cmdlets/WebApps/NewAzureRmWebAppContainerPSSession.cs b/src/Websites/Websites/Cmdlets/WebApps/NewAzureRmWebAppContainerPSSession.cs
index cd64be04f7be..66da8a7efc55 100644
--- a/src/Websites/Websites/Cmdlets/WebApps/NewAzureRmWebAppContainerPSSession.cs
+++ b/src/Websites/Websites/Cmdlets/WebApps/NewAzureRmWebAppContainerPSSession.cs
@@ -13,12 +13,14 @@
 // ----------------------------------------------------------------------------------
 using System.Management.Automation;
 using Microsoft.Azure.Commands.ResourceManager.Common.ArgumentCompleters;
+using Microsoft.WindowsAzure.Commands.Common.CustomAttributes;
 using Microsoft.WindowsAzure.Commands.Utilities.Common;
 namespace Microsoft.Azure.Commands.WebApps.Cmdlets.WebApps
 {
     /// <summary>
     /// this commandlet will create remote ps session with site
     /// </summary>
+    [CmdletDeprecation()]
     [Cmdlet("New", ResourceManager.Common.AzureRMConstants.AzureRMPrefix + "WebAppContainerPSSession", DefaultParameterSetName = ParameterSet1Name, SupportsShouldProcess = true)]
     [OutputType(typeof(System.Management.Automation.Runspaces.PSSession))]
     public class NewAzureRmWebAppContainerPSSession : WebAppBaseCmdlet