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Michael
Asked: 2013-05-01 04:04:20 +0800 CST

Does the userPrincipalName (UPN) attribute always exist in Active Directory?

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Does the attribute userPrincipalName (UPN) always exist for users in Active Directory? Can you specify the Active Directory versions where it is not created during creation of a user?

active-directory

1 Answers

  1. Best Answer

    The User-Principal-Name attribute is only used within the User class. Note that the attribute is not marked mandatory.

    The following Powershell example will create an AD user without a UPN:

    Import-Module ActiveDirectory
New-ADUser -Name abUser

    Observe that there is no UPN defined on the user object:

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