I am trying to get a reply for this specifically as it sounds like something that should be documented here.
Hey . Alansmithee,
I think the answer can be found here: Developer Resources - Tableau
A quick snipet...
Notes for Tableau Online users
- When you make REST API calls to Tableau Online, you need to use the URL for the instance on which your site exists. For example, https://10ay.online.tableau.com/For information, see Specifying Resources for Tableau Online under Using URIs to Specify Resources.
- Not all of the methods provided in the Tableau REST API are applicable to Tableau Online. For information, see the API listing by category in the API Reference.
Hope that helps!
Sr. Product Manager