Executive Reports for Microsoft Planner

Hi shirleys 

That error message means what your URL returned doesn't look like something an OData feed would return. Try checking your results in Postman and maybe a browser to make sure the results actually look right. Sometimes this can happen if Auth in the service isn't configured correctly; we look for HTTP status codes that indicate a lack of Auth, and certain auth headers in the case of OAuth. If the service just sent you directly to a login screen without an error, that would definitely confuse the connector in Power BI.