Credentials

AccessUnauthorized

Power BI dataset refresh error — what it means and how to fix it.

What this means

The same OAuth2 long-refresh token expiry, on cloud data sources.

How to fix it

Finish the refresh within the ~1 hour token window.
Re-authenticate the data source.
Use incremental refresh to keep runs short.

View on Microsoft Learn

Related credentials errors

InvalidConnectionCredentials
The credentials provided for the dataset are invalid
The credential stored in the cloud is missing
Access to the resource is forbidden

Catch this automatically

RefreshRadar monitors every Power BI dataset refresh and alerts you the moment one fails — with the likely cause and the fix — so you never hear about a broken refresh from your stakeholders first.

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