Marc Rufer
Projects, Scripts, and Modules
![[HOWTO] Delete Azure DevOps users with principalName starting with OIDCONFLICT_UpnReuse_](https://i0.wp.com/psweekly.dowst.dev/wp-content/uploads/psweekly/202620/howto-delete-azure-devops-users-with-principalname-starting-with-oidconflict-upnreuse.thumb.png?w=900&ssl=1 "[HOWTO] Delete Azure DevOps users with principalName starting with OIDCONFLICT_UpnReuse_")
[HOWTO] Delete Azure DevOps users with principalName starting with OIDCONFLICT_UpnReuse_
(blog.rufer.be)
In Azure DevOps organizations that are connected to Microsoft Entra, you may spot (duplicated) users
By: Marc Rufer submitted:May 15 2026
In Azure DevOps organizations that are connected to Microsoft Entra, you may spot (duplicated) users
with email prefixed with OIDCONFLICT_UpnReuse_{OID_HERE} (i.e. when trying to give them access or when mentioning them): Such users are neither visible in the Azure DevOps Web UI under Organization settings > General > Users nor when querying all users via graph or via the Azure DevOps CLI.
By: Marc Rufer submitted:May 15 2026
