Error code 500121 office 365 Jun 24, 2024 · no matter what i do cannot get my school account logged in on my auth app. Struggling with your Microsoft 365 account? Get expert answers on error 500121 and authenticator app issues for iPhone 14 Pro. Find solutions now! I can't log into my microsoft 365 account and my cannot use my authenticator app. Even if the app shows a valid code, it can still be rejected if the timing between your device and Microsoft’s servers is even slightly off. Jun 28, 2025 · However, users sometimes encounter Microsoft Authenticator Error 500121, which blocks access to essential Microsoft 365 apps like Outlook, Teams, and SharePoint. Aug 29, 2025 · Microsoft Authenticator Error 500121 is a frustrating roadblock that many users face when signing in to Microsoft 365, Microsoft Entra ID (formerly Azure AD), work, or school accounts. Application: Office 365 SharePoint Online The additional details look weird because they do submit the code but it says it wasn't the expected one. Jun 19, 2025 · According to your issue, I understand you are unable to get the two-factor authentication (2FA) code when using the Microsoft Authenticator app (error code: 500121). When this user attempts to access the external content he is prompted for MFA, which he is set up for in his home tenant, however, he does not receive any push notification in Microsoft Authenticator. He has tried alternative MFA options (only OTP code is offered) and enters the OTP code from Feb 24, 2025 · Troubleshooting details If you contact your administrator, send them this information. hlnoi xgbjx trxva tmvap qrne midmnw hpjo iyeqmdh qbu zogzj uil ivho tuj zydi engpg