No specific configuration steps are required at Tableau Online to enable user provisioning from Access Manager using SAM. However, you will need to record the following information from your Tableau Online account:
The user name (in email format) and password of the site administrator user.
The site name of your Tableau Online account that you specified when you created the account. You can find this value in the URL that you use to access the Tableau Online administration pages. For example, if your administration URL is https://10ay.online.tableau.com/#/site/usethisname/settings, then usethisname is the site name.
The subdomain name of your Tableau Online setup. You can find this value in the URL that you use to access the Tableau Online administration pages. For example, if your administration URL is https://10ay.online.tableau.com/#/site/usethisname/settings, then 10ay is the subdomain name.
Use the values you recorded to configure the Account Management settings for the Tableau Online application in Access Manager.