what is upn

What is upn?

1. Universal Product Number

Universal Product Number

2. User Principal Name

User Principal Name

One The User Principal Name (UPN) consists of the user account login name and the user principal name suffixed by the "@" symbol. UPN can simplify login. Typically, the UPN is the user's email address. Because the user principal name provides the ability to perform a single logon anywhere in the enterprise, the UPN can be unique throughout the Microsoft Windows 2000 forest. This is accomplished by querying the global catalog for the UPN of an existing user

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