Microsoft Security | Microsoft Authenticator
A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation
New phone, can’t access authenticator to verify login. Stuck in a loop
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(57.599999999999994, 64%, 15%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESB%3C/text%3E%3C/svg%3E)
Sarah Barros
5
Reputation points
Hello,
I am currently locked out of my Microsoft 365 tenant because multi-factor authentication is enforced, and I am unable to complete the verification process. I am the only global administrator for this tenant, which means I cannot access my account or the tenant.
I would like to be connected with the Data Protection Team to verify my identity and assist with regaining access. I am available to provide any required documentation or verification to support the recovery process.
Microsoft Security | Microsoft Authenticator
{count} vote
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(201.6, 99%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ER%3C/text%3E%3C/svg%3E)
Rukmini 29,625 Reputation points Microsoft External Staff Moderator2026-02-24T11:55:05.8033333+00:00 Hello Sarah Barros,
What is the error you are getting? Can you please share the error?
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Sarah Barros 5 Reputation points
2026-02-24T11:57:02.0666667+00:00 Error Code: 500121
Request Id: 717f0226-6d46-4c36-88b2-3d4892261700
Correlation Id: 703e631f-041a-4776-9032-2c8d8b5c7f2d
Timestamp: 2026-02-24T11:56:10Z
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(19.2, 35%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EP%3C/text%3E%3C/svg%3E)
Priya 0 Reputation points2026-02-25T18:28:32.6833333+00:00 Hello I am facing the same issue and have posted a question about it here - https://learn.microsoft.com/en-us/answers/questions/5787720/global-admin-account-locked-out-due-to-mfa-issue
Can you please assist me with the same as well?
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