I am an account administrator. Due to changing my phone, I am now unable to log in to Authenticator. However, when I try to log in to my account, I must use Authenticator. How can I resolve this issue?

Question

I am an account administrator. Due to changing my phone, I am now unable to log in to Authenticator. However, when I try to log in to my account, I must use Authenticator. How can I resolve this issue?

lzwd 0

Shubham Sharma 13,000 Reputation points Microsoft External Staff Moderator

2026-04-13T12:39:49.2666667+00:00

Hello lzwd

Based on the details you’ve shared, this appears to be a tenant lockout scenario.

To resolve this, the recommended approach is to contact the Microsoft Data Protection team. You can reach them by calling Microsoft Customer Service using the phone numbers listed here: Customer service phone numbers - Microsoft Support.

If you have access to another tenant or subscription where you still have Global Administrator privileges, you may also raise a support request from there to get assistance in restoring access to the affected tenant.

For future reference and to help prevent tenant lockouts, please check: Preventing tenant lockouts - Microsoft Learn.

If neither option is possible, please don’t worry—let us know, we are happy to assist you further!
Shubham Sharma 13,000 Reputation points Microsoft External Staff Moderator

2026-04-14T10:42:00.0633333+00:00

Hello lzwd

Following up to check if the resolution provided was helpful. Please let us know if you need any further assistance.