Error message in SPO when viewing published App

Hi Anonymous 

You seem to embed your app to Share Point Online and get error after you update the report and gateway.

Firstly, refresh your dataset in service to test whether the gateway works well.

Then ask the author if there is a row level security applying to your user or check the workspace and see what your user rights are.
A combination of lower user rights on a workspace and row level security on the data could hamper your access.

You can try to delete the database role and re-creating it.

For reference: Report couldn't access the data source

You may refer to this blog: Embed the Power BI project report in SharePoint Online

Best Regards,

Rico Zhou

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