How do I fix an Error Code: 500121?

Jane OLCOTT 5 Reputation points
2025-02-12T21:01:04.7033333+00:00

When trying to access an external partner's SharePoint, I do not get a Microsoft Authenticator notification although I have the app and am successfully logged in. I contacted my own IT team to reset my MFA and remove/reset my device, and did so, but nothing is working. I think the problem may be resolved by the IT team on my partner's SharePoint side? Please advise.

Microsoft Authenticator
Microsoft Authenticator
A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation.
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