End users use their own OAuth2 credentials: False.
Previously it has worked, such that all users with acces to the workspace could refresh the reports, and the connection was using the SQL Server Authentication.
We have never had the need to use a gateway for this.
Can't refresh your data The credentials you provided for the data source are invalid. Please check the credentials for all the data sources. Please try again later or contact support. If you contact support, please provide these details. Activity ID: ca179465-d272-4cd6-be97-f23ab6e7caf1 Request ID: aea423e5-0d19-5c89-4463-e7e3bf8f2206 Correlation ID: 576d4eff-8c50-40af-1a86-75f26a6a5ac8 Status code: 404 Time: Fri Mar 01 2019 14:53:51 GMT+0100 (Centraleuropæisk normaltid) Version: 13.0.8482.156 Cluster URI: https://wabi-north-europe-redirect.analysis.windows.net