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
Can't sign in to Microsoft 365
![](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(140.8, 14.000000000000002%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ETP%3C/text%3E%3C/svg%3E)
Tobias Putz
0
Reputation points
Good day,
I purchased a Microsoft 365 Business Premium account a month ago.
Due to switching to a new phone, all other 2FA codes were transferred except this one. I am the only admin. I have reset my old phone. It's the same problem as described here: https://answers.microsoft.com/de-de/msoffice/forum/all/altes-handy-kaputt-kein-zugriff-auf-authenticator/4c020c3a-ce28-4d7d-a7b2-1dfba6ebc916
I have no way to contact support through the website, and I cannot reach anyone by phone (tried various numbers at different times of the day).
Please provide quick assistance.
Microsoft Security | Microsoft Authenticator
Sign in to answer