MFA account deleted

robb carr 1 Reputation point

I recently created a new m365 domain and foolishly only created the one account. I had setup the MFA on it and had it working. While tinkering with some things, I decided to recreate the name of my domain and added a new user to that one and deleted the original domain user. To make this more simple:
NameA@keyman got replaced with
NameB@keyman .com

My authenticator was loging me in with nameA so I deleted that off of the app. Now when I try to login with NameB I get the request to sign in with the authenticator, but no longer have access to it.

What are my options? I have read maybe powershell scripts?

Microsoft Authenticator
Microsoft Authenticator
A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation.
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  1. JimmySalian-2011 31,901 Reputation points


    Did you had backup of the previous Account in Auth App? If yes you can restore the backup and if you dont have any other account to reset your MFA for your account, you will have to raise a support case with Microsoft or call up the support desk.

    Hope this helps.

    Please Accept the answer if the information helped you. This will help us and others in the community as well.

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