With Tableau Prep 2019.1 was released new feature—Tableau Prep Conductor. Prep Conductor is that server integration, and it unleashes the full potential of Tableau Prep to operationalize your data prep experience. With Prep Conductor, you can schedule your flows to run, when, where, and how you want to. You can choose which outputs to schedule independently of one another. You can read more about this feature here https://www.tableau.com/about/blog/2018/11/keep-your-data-fresh-tableau-prep-conductor-now-beta-97369.