I am unable to get into my Microsoft 365 Business admin account

Chris Clark 0 Reputation points
2026-08-24T18:51:32.4733333+00:00

I got a new phone and authenticator app is not working for me to be able to login my account. I have called the numbers provided dozens of time of the past few weeks to get this resolve and it keeps hanging up on me. My subscription comes up for renewal in SEPT so I need to get this resolved or my email and office will no longer be working. Can a person reach out to me at the email on this account to fix the problem.

Microsoft 365 and Office | Subscription, account, billing | For business | Other
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  1. Helen Luu 3,300 Reputation points Independent Advisor
    2026-08-24T19:01:09.71+00:00

    Hello Chris Clark,

    I understand that you are the only Global Administrator for the tenant and are currently unable to sign in because the Microsoft Authenticator account is no longer available on your device, and no alternative MFA methods, such as a phone number or email address, have been configured. 

    Please note that this is a user support forum. Only the data protection team can help you revoke a session and reset passwords, accounts, multi-factor authentication (MFA), and more. 

    If you can't contact Microsoft Support by phone, you can try creating a new trial tenant using the link below: Microsoft 365 Business Plans and Pricing | Microsoft 365 After you fill out and submit the sign-up form, you'll have access to the Microsoft 365 admin center. 

    Once you've gained access, contact the Microsoft support team by following the guidance in the following document to create a support ticket: Get support - Microsoft 365 admin | Microsoft Learn 

    When submitting a ticket, be sure to make it clear that the issue is relevant to different tenants and Data Protection Team will first verify your ownership of the account and revoke your MFA once confirmed. After that, you can set up the Microsoft Authenticator app again on your new device. 

    After the issue is successfully resolved, remember to cancel your trial subscription by following the instructions in the following document: Cancel your Microsoft business subscription in the Microsoft 365 admin center | Microsoft Learn 

    If you have any further concern, please feel free to let me know. 

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  2. Chris Clark 0 Reputation points
    2026-08-24T18:54:22.28+00:00

    I need to hear from a representative to gain access to my 365 or my business will not be able to use email soon.

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