A cloud-based identity and access management service for securing user authentication and resource access
Hello constantin ionut,
Greetings! Thanks for raising this question in Q&A forum.
I understand this is a critical situation. Since you are the only Global Administrator and the only registered MFA method is no longer available, this is no longer something that can be recovered from within the tenant. Microsoft Support will need to perform an ownership verification process before any recovery action can be considered.
- Contact Microsoft Support through the business support channel that does not require access to the affected tenant.
- Explain that this is a sole Global Administrator lockout caused by the loss of all MFA methods and that no other Global Administrator exists in the tenant.
- Be prepared to provide proof of ownership, such as subscription details, billing information, company registration documents, and DNS ownership verification for the custom domain.
- If you have access to the subscription purchase records (for example, through the reseller or CSP partner that manages the subscription), contact them as well, as they can often assist with opening a support case and validating tenant ownership.
- Once Microsoft validates ownership, the support team will advise the available recovery options and next steps.
The next action is owned by Microsoft Support (or your CSP/reseller if applicable). The support team will need to verify tenant ownership before they can review any administrator recovery options. Unfortunately, there is no public self-service form that can bypass Entra ID authentication for this specific scenario.
If this answer helps you kindly accept the answer which will help others who have similar questions
Best Regards,
Jerald Felix.