Impossible to rest MFA to access B2C AAD Tenant

Joseph DANQUECHIN DORVAL 21 Reputation points
2021-10-18T10:14:16.197+00:00

Hi,

After Ioosing my smartphone on which was set the Authenticator App for the B2C Tenant I can't sign in with the Azure Portal.

I can't reset the MAF to re configure my new smartphone. I can only log with Microsoft Authenticator or code to the mobile App...

141275-mfa.png

There is no more admin.

Do you know how can I reset the MFA configuration ?

Thanks a lot for your help.

Microsoft Entra External ID
Microsoft Entra External ID
A modern identity solution for securing access to customer, citizen and partner-facing apps and services. It is the converged platform of Azure AD External Identities B2B and B2C. Replaces Azure Active Directory External Identities.
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Microsoft Entra ID
Microsoft Entra ID
A Microsoft Entra identity service that provides identity management and access control capabilities. Replaces Azure Active Directory.
19,664 questions
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Accepted answer
  1. AmanpreetSingh-MSFT 56,311 Reputation points
    2021-10-18T13:58:07.793+00:00

    Hi @Joseph DANQUECHIN DORVAL • Thank you for reaching out.

    This is a lockout scenario. You need to open a support ticket either by using this link (If you have access to any other Azure tenant) or using Global Customer Service Phone Number (If you don't have any other Azure Account). The support team will engage data protection team and they will require some evidence that proves your ownership to the verified domain and the tenant that you want to get access to. After reviewing and verifying the request, access to the tenant will be provided.

    Unfortunately, there is no other way to get access to the tenant in such scenario. Going forward, to avoid lockout please configure a break-glass/emergency access accounts. Read more about emergency access accounts here: https://learn.microsoft.com/en-us/azure/active-directory/roles/security-emergency-access

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  1. Raphael ramos 41 Reputation points
    2023-01-06T13:13:58.313+00:00

    I was facing a similar situation, mainly because I have configured the B2C tenant as the startup directory. At this point, I had already disabled MFA for the main directory but couldn't get directly into it.

    So, by suggestion of a coworker of mine, on an anonymous tab, I tried https://portal.azure.com/@<main-directory-domain> and it worked like a charm.

    Hope it helps.

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