A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation
The Microsoft Authenticator app usually generates a 6-digit code for two-factor authentication. If you are only seeing an 8-digit code, it might be a temporary app password. You can try resetting the app or removing and re-adding your account to the app to see if that resolves the issue. If the problem persists, you may want to contact your organization's IT support for further assistance.