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Sole Global Administrator Locked Out of Microsoft 365 Nonprofit Tenant — MFA Recovery Needed

I'm the sole Global Administrator of a Microsoft 365 nonprofit tenant and am locked out because Microsoft Authenticator is not working. Tenant: postcarbon2.onmicrosoft.com Issue: My password works, but Microsoft Authenticator isn't receiving approval…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-28T05:13:07.44+00:00
Desiree Cesarini 0 Reputation points
answered 2026-10-28T05:13:48.1566667+00:00

AI answer

2 answers

Unable to leave tenant in Microsoft Azure

I have apparently been added to an organization in Microsoft Azure. I don't know anything about this organization. I am unable to leave it because it's set as my default organization. There is also no admin to contact in order to be removed. How do I…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-27T21:06:37.8466667+00:00
Todd Quigley 0 Reputation points
answered 2026-10-28T03:55:52.45+00:00
Todd Quigley 0 Reputation points
0 answers

Fix this tutorial

With regard to the guide: Really? You expect me to invest my time researching and writing a quality question so you can respond with .0000002 seconds of CoPilot compute time? Not gonna happen. Build the app described here:…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-28T02:22:12.0366667+00:00
Sam Wheat 506 Reputation points
1 answer

Microsoft 365 Copilot Desktop Sign-in Fails with AADSTS53003 Under FIDO2 Conditional Access Policy

Hello, We are experiencing an authentication issue with the Microsoft 365 Copilot desktop application after enforcing FIDO2 authentication for privileged administrator accounts through Microsoft Entra Conditional Access. Current configuration: …

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-23T10:26:25.0733333+00:00
MILAN OMIDVAR 0 Reputation points
edited a comment 2026-10-28T00:46:08.5266667+00:00
MILAN OMIDVAR 0 Reputation points
2 answers

Error 399287 – Sole Global Admin locked out, SMS MFA blocked

Hello Microsoft Support Team, I am unable to access my Microsoft Entra ID tenant because SMS multi-factor authentication is blocked. Tenant: vitebsk.onmicrosoft.com Affected account: Error Code: 399287 Phone country code: +375 (Belarus) The phone number…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-27T14:34:42.8266667+00:00
Andrei Hnidzenka 0 Reputation points
edited the question 2026-10-27T23:51:18.6+00:00
Andrei Hnidzenka 0 Reputation points
0 answers

Unable to log into Azure Portal due to error with identity verification over phone

I'm unable to log into Azure Portal with my user account. I can log into Microsoft 365, and when logging into the Portal I get past the initial login process steps (username, password, verification in Microsoft Authenticator). However, I'm also asked to…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-27T22:05:03.6066667+00:00
Kristian W 0 Reputation points
edited the question 2026-10-27T22:14:51.1+00:00
Kristian W 0 Reputation points
0 answers

AADSTS5000224: nonprofit tenant inaccessible; admin cannot open a support case

Hello, I am seeking help with an existing Microsoft 365 / Microsoft Entra organization tenant that was previously accessible. Microsoft has approved our organization for its nonprofit program, but tenant access has not been restored. Sign-in problem …

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-27T20:24:40.36+00:00
John Schell II 0 Reputation points
1 answer

Error Code: 500121 Request Id: 74d019d3-654f-4920-8471-ac1a9c402500 Correlation Id: 5876e453-43f9-48c8-be65-0b4907c2f79d Timestamp: 2026-10-27T18:29:01Z

I cannot get message to sign in ******@hw.ac.uk Error Code: 500121 Request Id: 74d019d3-654f-4920-8471-ac1a9c402500 Correlation Id: 5876e453-43f9-48c8-be65-0b4907c2f79d Timestamp: 2026-10-27T18:29:01Z

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-27T18:35:39.1466667+00:00
Rakhman Yessen 0 Reputation points
edited an answer 2026-10-27T20:24:07.2933333+00:00
Sreejith Reghunathan Pillai 30 Reputation points MVP
1 answer

Need to change the global admin to my control I am the director

I am a director of a company. we have services thru a service provider for 0365 and sharepoint etc. we are switching providers and do not have a global admin account access. need to contact data protection to change the global admin

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-27T19:36:20.8966667+00:00
Eric Kazenbroot 0 Reputation points
answered 2026-10-27T20:12:28.63+00:00
Sreejith Reghunathan Pillai 30 Reputation points MVP
2 answers

Entra admin center keeps opening as the wrong account/tenant after signing that account out

When I sign into the Microsoft Entra admin center (entra.microsoft.com) with my personal Microsoft account (Outlook.com), the portal keeps opening as a different account (a Gmail address used as a Microsoft account), under a tenant associated with that…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-26T21:36:56.75+00:00
Andy Huang 0 Reputation points
edited an answer 2026-10-27T19:55:53.09+00:00
Sreejith Reghunathan Pillai 30 Reputation points MVP
2 answers

Files Storage: Intermittent Azure Files F: Drive Access Issue with Microsoft Entra Kerberos — Troubleshooting Steps and Client Behavior Analysis

Problem description I am experiencing an intermittent issue accessing an Azure Files SMB share mapped as a network drive on Windows 11 devices using Microsoft Entra Kerberos authentication. During a recent occurrence, the mapped drive was unavailable…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-21T12:35:27.32+00:00
Paul 0 Reputation points
commented 2026-10-27T19:29:30.7866667+00:00
Sreejith Reghunathan Pillai 30 Reputation points MVP
2 answers

How can I identify an OAuth app’s home tenant from its client ID?

I maintain an application that integrates with Microsoft 365 email using OAuth. I know its client ID and have source-history evidence that its client secret was updated in January 2025. I can sign into Entra using the personal Microsoft account…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-27T17:38:52.0066667+00:00
Dave 0 Reputation points
answered 2026-10-27T18:13:01.6066667+00:00
Vasil Michev 128.6K Reputation points MVP Volunteer Moderator
1 answer

Global-Admin ist nicht mehr zugänglich. Beim Login erscheint der Fehler AADSTS50020. Ich benötige Wiederherstellung des Adminzugangs oder Kündigung des Abonneme

Ich habe gerade noch eine Mail an Hallo Herr Doktor Müller vielen lieben herzlichen Glückwunsch zu deinem heutigen Ehrentag wünsche dir einen wunderschönen Geburtstag lass es krachen lass es

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2025-12-29T11:14:36.7466667+00:00
Elias Königsberger 0 Reputation points
commented 2026-10-27T15:40:29.8866667+00:00
Elias Königsberger 0 Reputation points
2 answers

Entra Global Administrator MFA recovery

Hello, I am posting on behalf of our organization's affected administrator, with his authorization. After changing phones, he lost access to his Microsoft Authenticator registration. Backup restoration failed. "Sign in another way" offers…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-27T14:58:07.6+00:00
Francisco Eslava 0 Reputation points
answered 2026-10-27T15:18:04.6133333+00:00
Heimerdinger 1,300 Reputation points Independent Advisor
1 answer

External guest users error AADSTS90023 Teams mobile app on Android

External guest users invited with Gmail accounts to our Microsoft 365 Business organization can access Microsoft Teams via browser/desktop, but cannot sign in to the Teams mobile app on Android. When selecting our organization, they receive error…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-27T14:56:15.79+00:00
Kostas Theodoridis 0 Reputation points
answered 2026-10-27T14:57:15.8366667+00:00

AI answer

3 answers

how to reset mf2 azure admin account after losing the phone

my manger lost his phone, and it contains an authentication app for login to azure account using mf2 , how we can reset mf2 to re login to our subscription.

Microsoft Security | Microsoft Entra | Microsoft Entra ID
Microsoft Security | Microsoft Authenticator
asked 2024-09-10T09:06:18.46+00:00
Bassam Omar 0 Reputation points
answered 2026-10-27T13:53:51.6933333+00:00
Adam White 0 Reputation points Microsoft Employee
2 answers

Unable to Access Personal Azure Entra Tenant – MFA Lockout – Need Data Protection Team Assistance

Hello Microsoft Support, I need assistance recovering access to my personally created Azure/Microsoft Entra environment. My personal Microsoft account works correctly, but Azure Portal and Microsoft Entra Admin Center both require Microsoft Authenticator…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-15T13:56:35.0966667+00:00
Avadesh Chauhan 5 Reputation points
commented 2026-10-27T11:41:46.4233333+00:00
Avadesh Chauhan 5 Reputation points
1 answer

Sole Global Admin locked out of Azure portal - personal Microsoft account (outlook.com), Authenticator device lost, need MFA reset

I signed up for Azure myself with a personal Microsoft account (outlook.com). That account is the only Global Administrator of the auto-created "Default Directory" tenant. I can still sign in to the Microsoft account itself, but the Azure…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-23T16:14:11.17+00:00
huhao 0 Reputation points
edited the question 2026-10-27T07:38:34.2766667+00:00
huhao 0 Reputation points
1 answer

Personal Microsoft account (@hotmail.com) incorrectly associated with EY Microsoft Entra tenant — Unable to leave organization

Hello, I have a personal Microsoft account using a @hotmail.com email address. My Outlook.com mailbox works normally, and I can sign in to it without any issues. However, when I access the Microsoft Azure or Microsoft Entra portals, my account appears to…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-26T18:45:17.7933333+00:00
Lucas Ariel Saavedra 0 Reputation points
answered 2026-10-26T18:45:47.98+00:00

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2 answers

Azure wants 6 digits code but Authenticator generates 8 digits

I am experiencing the exact same problem as listed in this post https://learn.microsoft.com/en-us/answers/questions/2237947/azure-wants-6-digits-code-but-authenticator-genera I am the tenant’s only Global Administrator. Microsoft Authenticator was…

Microsoft Security | Microsoft Entra | Microsoft Entra ID
asked 2026-10-26T15:39:05.58+00:00
Michael Manzano 0 Reputation points
answered 2026-10-26T16:09:58.2666667+00:00
Michael Manzano 0 Reputation points