MFA on Microsoft 365 developer subscription needs resetting - please advise what I need to do

Question

Hi, I can no longer access the MFA codes in the Authenticator App for my Microsoft 365 developer subscription. Is it possible to have MFA reset so I can setup authenticator again? I know password for the Admin Account, just cannot receive the MFA codes on mobile device.

Details
Domain name

80ss24.onmicrosoft.com

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E5 Subscription

Automatically renewed via Visual Studio

Administrator

[Moderator note: Personally Identifiable Information removed] @80ss24.onmicrosoft.com

Linked Visual Studio Subscription

Subscription ID: [Moderator note: Personally Identifiable Information removed]

Expiration Date: 6/10/2027

Status: Active

Answer 1

If you have another Global Administrator/Authentication Administrator account in the tenant, you can reset the MFA for the affected admin. Go to Microsoft Entra admin center → Entra ID → Users → select the affected account → Authentication methods → Require re-register multifactor authentication. This removes the existing Authenticator registration and allows the user to set up MFA again on the next sign-in.

Microsoft Learn

If this is the only Global Administrator account and you have completely lost access to the Authenticator and have no other verification method, you cannot reset your own MFA from the tenant. In that case, you need to contact Microsoft Support and request an MFA/authentication-method reset for the Microsoft 365 Developer tenant, while being prepared to verify ownership. Similar Microsoft Q&A cases confirm this route for developer tenants where the sole admin is locked out.

Once access is restored, I recommend registering at least two authentication methods so losing one device doesn't lock you out again.