Miscellaneous topics that do not fit into specific categories.
Hello Jade Bellamy, thanks for posting this in the community.
To help isolate the issue, may you confirm whether this is a work or school account and share the exact error message shown in Microsoft Authenticator?
Before anything else, please ensure that your device time is set to automatic. On Android, go to Settings > System > Date & time and enable automatic time. On iPhone, go to Settings > General > Date & time and enable Set Automatically.
If this is a work or school account, try forcing a full sync in the Authenticator app. Open Microsoft Authenticator, tap your account, select Sync or Check for notifications, and verify that no errors are displayed. If any warnings appear, choose Fix now.
Kind regards,
John Oli