Forum Discussion
AD Guest Users unable to access SharePoint Online
Andreas__ Mildly related, and otherwise for future reference...
Context: new communication-site setup for an extranet, added some guest-users from our msp-domain tenant to test things out as 'guests' > registering as guests worked (ended on the 'my apps' on that tenant?!) > entered the sharepoint-site url > all having Sharepoint-error below
(https://tenantname.sharepoint.com/_forms/default.aspx > 'signing in is not complete' in page title browser)
Something went wrong
We're sorry, sign-in isn't working right now. But we're on it! Please try again later.
ID: 687f0fa1-4053-8000-3a1e-34ac4495b2a3
Issue Type: Unknown issue.
Resolution: tried a personal email-adres (not tied to our msp-domain) to try again and that one worked without a problem?!
Rootcause?: not 100% sure, but because we as a MS-partner for this client also have a GDAP-partner-relationship and a B2B External Identities automatically setup, I guess there was a conflict with the created guest-user vs the B2B-rights.
(some PowerShell for the B2B-functionality: https://www.blimped.nl/sharepoint-guest-access-and-azure-ad/)