Unable to login to Microsoft account after loss of MFA device

Robin Tong 0 Reputation points

Having just setup a Microsoft account, along with Microsoft 365 for Business, setting up MFA, and being the only admin user I then proceeded to loose access permanently to the Microsoft Authenticator that contained said MFA credentials.

When trying to login I get stuck in a loop, being asked to either:

"Open your Authenticator app, and enter the number shown to sign in.​​"

"Enter the code displayed in the Microsoft Authenticator app on your mobile device"

Neither of which I can fulfil and these are the only 2 options I'm presented with!

I've searched high and low for a solution but no luck, especially as MFA is involved.

Before I lost access I was able to verify our companies domain – not sure if that'll help get re-verified, but here's hoping!

Can anyone please suggest next steps to escalate this with the relevant people @ Microsoft?



P.S. I'm referring to a different account to the one I'm posting from.

Azure Active Directory
Azure Active Directory
An Azure enterprise identity service that provides single sign-on and multi-factor authentication.
14,680 questions
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.
3,253 questions
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  1. Michael Durkan 9,926 Reputation points MVP


    I would suggest raising a ticket using your local number from one of the Global Support numbers listed here:


    They should be able to assist. You will need to provide proof that you are the owner of the Subscription.

    Hope this helps,


    Michael Durkan

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