Merge pull request #10946 from ruchiagrawal9221/patch-2

Update Move-CsUser.md

Author: tiburd

skype/skype-ps/skype/Move-CsUser.md

@@ -14,7 +14,13 @@ ms.reviewer:
 
 ## SYNOPSIS
 
-Moves one or more user accounts enabled for Skype for Business Server to TeamsOnly (or the reverse). This cmdlet also can be used to move on-premises users from one pool to another.
+Moves one or more user accounts enabled for Skype for Business Server to TeamsOnly (or the reverse). This cmdlet also can be used to move on-premises users from one pool to another. 
+
+**PRE-REQUISITES steps for** [Office 365 operated by 21Vianet](/microsoft-365/admin/services-in-china/services-in-china?view=o365-21vianet) 
+- Install or update the Microsoft Teams PowerShell module to version 5.2.0 or later
+- Run Set-TeamsEnvironmentConfig -TeamsEnvironmentName TeamsChina
+
+For more information, see [Set-TeamsEnvironmentConfig](/powershell/module/teams/set-teamsenvironmentconfig).
 
 ## SYNTAX