Global Admin accounts locked out due to MFA – Authenticator access lost

Jorge Godoy 0 Puntos de reputación
2026-01-25T04:14:55.11+00:00

IMPORTANT:

This Outlook account is NOT part of the affected tenant.

It is used ONLY to open this support case.

The affected tenant is completely locked out due to MFA.

Both Global Administrator accounts (Moderator note: personal info removed) lost access to Microsoft Authenticator after phone replacement. No alternative authentication methods (SMS, email, backup codes) exist.

We request Microsoft support to verify domain ownership and force MFA re-registration or temporarily disable MFA for the affected Global Admin accounts.

Tenant domain: Moderator note: personal info removed

Service: Microsoft Entra ID / Microsoft 365

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  1. Sophie N 18,180 Puntos de reputación Personal externo de Microsoft Moderador
    2026-01-25T04:59:25.3433333+00:00

    Disclaimer: Since you described your issue in English, I will also provide my response in English, even though the support site you are using is based in es-es. If you prefer a Spanish response, please feel free to let me know.

    Dear @Jorge Godoy,

    Thank you for reaching out to the Microsoft 365 Q&A forum community support team. I understand you’re experiencing issues with your Multi-Factor Authentication (MFA). Since both Global Administrators have lost access to their MFA methods and no secondary methods exist, the automated recovery systems cannot be used. For security reasons, MFA resets for Global Admins cannot be performed through the online forums or standard chat support.

    As a member of the community support team, I’m limited in my ability to access or make changes within your administrator account. For security and privacy reasons, only Microsoft’s dedicated support team has the necessary tools and authorization to assist with account-level issues such as resetting or troubleshooting deep within your account.  

    Please follow the guidance below:

    Option 1: Contact Microsoft support by phone  

    If you are unable to access the Microsoft 365 admin center, you can contact Microsoft Support directly.  

    Find the appropriate phone number for your region here: Customer service phone numbers - Microsoft Support  

    To help you navigate the automated phone system (IVR), here’s an example of how the conversation might go:  

    • IVR: What kind of problem are you concerned about?   You: Multi-Factor Authentication (MFA) 
    • IVR: What kind of product do you use?   You: Office 365 for business  
    • IVR: Education or business account?   You: For business  
    • IVR: Are you an administrator?   You: Yes  
    • IVR: Do you have another administrator in your organization?   You: No  
    • IVR: Do you need a service request?   You: Yes  

    This should help you get connected to a live support agent who can assist you directly.  

     Note: Sometimes, you would hear the co_mputer-generated voice at first, please kindly wait for it to end, and if an agent is available, you would be directed to them and get your support. During peak hours, there might be high call volumes, so we kindly ask for your patience as we work to assist everyone as quickly as possible_ 

    Select 2: Create a temporary tenant to submit a support ticket  

    Important: Please remember to cancel the trial subscription once your issue is resolved to avoid any charges.  

     If your organization's Office 365 Business/Education subscription is from a partner or reseller, and the global administrator is unable to open a service request on your end, contact the reseller's support provider to help open a service request on behalf of you instead. 

    I hope the above information is clear. Thank you for your understanding and cooperation. Please let me know how it goes after trying the steps above. I’m here to help further if needed.  


    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".   

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

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