OWA, Windows sign-in, and Outlook mobile app proceed to the MFA registration and/or use. When I switch from company's Teams to Fix Outlook and Office 365 Errors 2025 client's, I am asked to log in. The log in prompt shows a code and to authenticate it in Microsoft Authenticator. There is no prompt/ notification in my Microsoft Authenticator to put the number. If you've tried these steps but are still running into problems, contact your organization's Help desk for assistance. If you're an admin ...