I set up a dashboard using a connection to a SharePoint list back in January in Tableau Desktop and then published it to server. The extract has refreshed every weekday morning until Friday. Now, not only will the extract not refresh, I can't connect to the same data source through Tableau Desktop either. Any ideas what could have suddenly changed to cause this issue? I connect to SharePoint Online by using my username and password, but I have not updated my password in 21 days. Hoping someone else has experienced this and has an easy fix! Thanks!
This has definitely to do with your account I believe. Can you connect through your navigator ?
i'd also suggest having a look at the following article
What's the exact error message ?