COMMAND EVERYTHING.
Removes a custom UPN suffix.
Active Directory · Risk: Critical · Documentation VerifiedLast verified: 2026-10-26
Microsoft ADFS reference: Removes a custom UPN suffix. The syntax and selected example below are adapted from the pinned Windows Server 2025 reference. Module availability, target configuration and delegated permissions determine whether it can run in your environment. Documentation and parameter text: Microsoft, CC BY 4.0; formatting adapted by Cmdlet World. No execution testing is claimed.
Remove-AdfsDeviceRegistrationUpnSuffix [-UpnSuffix] <String> [-Force] [-WhatIf] [-Confirm] [<CommonParameters>]Use an account with the target resource permissions documented for Remove-AdfsDeviceRegistrationUpnSuffix. Modifying administrative cmdlets may require elevation or delegated administration. This catalog does not assert that ordinary users can execute the command.
Windows / ADFS · Windows Server 2025 documentation; feature/module prerequisites apply
-Confirm-Force-UpnSuffix (required)-WhatIfWindows with the ADFS module and the Windows feature or management tools that provide it. Confirm target connectivity and version compatibility using the linked Microsoft reference.
This cmdlet changes system state. Review every target and parameter in the official reference, test outside production, and prepare an appropriate backup or rollback. Do not execute the example automatically.
Remove-AdfsDeviceRegistrationUpnSuffix -UpnSuffix "Child.Contoso.com" -ForceThis command removes the UPN suffix Child.Contoso.com from the list of acceptable UPN suffixes for users to workplace join their devices. Source: Microsoft, CC BY 4.0; transcript prompt/output removed. This example was not executed.
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