Change UPN Suffix To Multiple Users

Today I’ll show you a very simple and easy way to change the UPN suffix of multiple users using Active Directory Users And Computers console.

Changing the UPN suffix to an Internet routable domain Is a must when migrating services to Office 365.

To get started Open the ADUC console and highlight all the users In the OU.

Right Click and select properties

In the account Tab tick the UPN Suffix and select the UPN domain from the drop down list.