Request Id: <PII removed> Correlation Id: <PII removed> Timestamp: 2025-11-11T06:41:38Z Message: AADSTS50020: User account '<PII removed>' from identity provider 'live.com' does not exist in tenant '

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Hi @Thomas Chan

Thank you for posting your question in the Microsoft Q&A forum.

From the message you provided, it seems like the account trying to access SharePoint is an external account, which mean the user is not a member of your tenant.

So, they will not have permission to access your SharePoint sites and contents.

Error AADSTS50020 - User account from identity provider does not exist in tenant | Microsoft Learn

You'll need to add that user as guest user in your tenant.

Please follow the steps here:

Quickstart: Add a guest user and send an invitation - Microsoft Entra External ID | Microsoft Learn

This will grant the permission so that external user can access internal data.

I hope this information helps.

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