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You cannot reuse UPN for users in Project Online and Project Server 2013

Symptoms
If you re-use Active Directory (AD) UPNs (or email address) for user accounts in the Project Web App, the user's historic data may be incorrect.


Cause

Active Directory (AD)UPNs (or email address) cannot be reused for user accounts by Project Web App. The AD group user may appear to synchronize properly with Project Web App (PWA),  but if the UPN already exists for a resource in PWA you see unexpected behavior.

For example: John Doe is an employee at Contoso, his UPN or email is JDoe@contoso.com. His account is added to an AD group that is used to synchronize users to PWA security groups. John Doe then leaves the company, his account is deleted from the AD group and on the next synchronization with PWA his account is marked as Inactive. This is by design to protect any history and reporting within PWA. Later, a new employee by the name of Jane Doe joins the company. At Contoso they have a policy to reuse UPNs when available. Jane is given the UPN or email address of JDoe@contoso.com. Jane is added to an AD group that synchronizes with PWA security groups. When the sync occurs, PWA is matching the UPN only. PWA sees that UPN already assigned to an Inactive resource and links up the new AD user with the old PWA user which is not the desired behavior. Historic data will be incorrect.
Workaround
The recommendation from Microsoft Project is to not reuse UPNs within Active Directory. UPNs need to be unique within in PWA in order to function as designed.
PSVR2013
Project Online


Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.
Properties

Article ID: 3174771 - Last Review: 06/25/2016 19:55:00 - Revision: 2.0

Microsoft Project Online, Microsoft Project Server 2013 Service Pack 1, Project Server 2016

  • KB3174771
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