This article assumes that you have a Power BI gateway configured and you are trying to configure scheduled refresh on the Jitbit datasource/semantic model.
You might get this error: You can't schedule refresh for this semantic model because the following data sources currently don't support refresh:
Data source for Query1
You need to go to your Power BI gateway settings:
Go to Connectors:
Make sure you have "Custom data connectors" enabled and that you have the correct folder. If everything is correct you should see Jitbit in the list and you should be able to configure a scheduled refresh.