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Hi all,
I have an issue when i try to connect my SharePoint on premises web application with Power BI Pro using On premise gateway (pesonal mode). It gives me the following error
"Failed to update data source credentials: The credentials provided for the SharePoint source are invalid."
My web application is configured with Forms based authentication + Windows authentication, which I suspect is causing the issue. Any other sharepoint on premise application gets readily connected with Power BI through gateway.
Also, I am able to connect to any on premise application using Power BI desktop as it gives me a log in page while connecting to data source.
Does Power BI not support connection to a sharepoint site with mixed authentication?
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