Intermittent SharePoint Connection Authentication Issue in Microsoft Fabric

Hello SanyamSingh2119,

Based on your description, it doesn't appear to be a SharePoint permissions issue, since re-authenticating the connection immediately restores access.

A few things I'd recommend checking:
* Verify whether the OAuth access token or refresh token is expiring and not being renewed correctly.
* Confirm that your organization's Conditional Access or MFA policies aren't forcing periodic re-authentication for SharePoint connections.
* Check whether the account used for the connection has experienced any password changes or credential updates.
* Review the Fabric Capacity and Service Health pages to see if there are any known issues related to SharePoint connections.

Since recreating or re-authenticating the connection consistently resolves the problem, this may indicate a token refresh issue or a service-side limitation rather than a configuration problem.

If the behavior is consistently reproducible, I'd recommend opening a Microsoft Fabric support ticket and providing the correlation ID and timestamp from the failure.

This will allow the product team to investigate whether the connection's OAuth token refresh is failing.

Best regards,
Omkar Shinde
Microsoft Fabric Enthusiast | Power BI Consultant

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