Forum Discussion
SharePoint guests can't login even with correct permissions
A client is unable to use SharePoint with guest users. When attempting access, an error message is displayed with no specific details—only a generic "unknown issue" notice. Error Message Displayed: ...
Hi IBN22,
Please follow the troubleshooting steps outlined in the article below:
https://learn.microsoft.com/en-us/archive/technet-wiki/52429.sharepoint-online-troubleshooting-we-re-sorry-sign-in-isn-t-working-right-now-but-we-re-on-it-please-try-again-later
If the issue persists after following these steps, you’ll need to raise a support ticket with Microsoft for further assistance.
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