Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hello @Maria Setola
If you still have an active session that can access the Microsoft Entra admin center, you may be able to create a new Global Administrator account. Since administrators generally cannot reset their own MFA methods, you can use the new Global Administrator account to reset the affected account's authentication methods and re-register Microsoft Authenticator. Reference: https://learn.microsoft.com/en-us/entra/identity/authentication/howto-mfa-userdevicesettings#manage-user-authentication-options
If you are the only IT administrator and are completely locked out of the tenant, the usual approach involves two options:
- Contact Microsoft Support directly by phone: Contact Microsoft Office Support
- If calling support does not work, you may consider creating a trial tenant and submitting a support ticket from there on behalf of the affected (locked) tenant. Please remember to cancel the trial subscription afterward to avoid any potential charges. Please note that this process may take longer than usual (around 7-14 business days), as the Data Protection team handles a high volume of requests. As a forum moderator, I don’t have access to Microsoft internal systems and won’t be able to expedite the process.
For detailed steps, kindly refer to the referenced thread: Denied global administrator access although I am the only admin
Hope this info helpful.
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