https://learn.microsoft.com/en-us/azure/databricks/partners/bi/tableau

You will need a token, please read best practices in the article above.

@bianca_unifeye 
I'm aware of the best practices. What confuses me is that when I open Tableau, I have two options to authenticate - OAuth and PAT. Currently I'm using the PAT generated from the Service Principal. But, when I try to login with the OAuth, it logs me with my user account, not the Service Principal. So, my question is: is it possible to login in Tableau with OAuth as Service Principal? Or do I have to create PAT for the SP, and login with it?

Best practices are to use OAuth to authenticate in Tableau - but how to do it for Service Principal?!

• If your requirement is “Tableau refreshes and access should not depend on any person”, then PAT for the SP (with rotation + least privilege) is typically the right approach.

• If your requirement is “each Tableau user should access data as themselves”, then OAuth (user identity) is the right approach.

OAuth in Tableau generally cannot “log in as a Service Principal” because OAuth is tied to a user authorization step; Service Principals are meant for headless flows, and Tableau’s OAuth UX doesn’t target that scenario. PAT is the standard workaround for SP/non-user accounts.