A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation
It sounds like you're experiencing a common issue when trying to access your Microsoft account after changing devices and losing access to the Microsoft Authenticator app. Unfortunately, if you are the sole administrator of your Microsoft business account and cannot access the Authenticator app, you will need to follow specific steps to regain access.
Here are some options you can consider:
- Contact Microsoft Data Protection Support: Since you are the only admin, you should reach out to Microsoft support directly. You can call their customer service and request to speak with an agent who can assist you in resetting your authentication method. Make sure to explain that you are locked out of your account and that you are the sole administrator.
- Create a Temporary Account (Trial Tenant): If you are unable to reach support through the hotline, consider creating a trial Microsoft 365 tenant. This will allow you to access the Admin Center and submit a support ticket requesting help from the Data Protection team regarding your original account.
- Alternative Verification Methods: If you have any other verification methods set up (like SMS or email), try using those to log in. If not, you may need to focus on contacting support to reset your MFA settings.
It's understandable that this situation can be very frustrating, but following these steps should help you regain access to your account.
References:
- How Do I Regain Access to My Account After Losing Access to Microsoft Authenticator? (Urgent Request). - Microsoft Q&A
- I cant log in to my business account because it is requiring Authenticator app which I do not have - Microsoft Q&A
- I have a Micrsoft business account and I am the admin and the only user registered under this account. I can't log in because i have replaced my phone and the authenticator doesn't work. - Microsoft Q&A