PBI Report Server Data Source from different domain

Hi PBI Experts,

Due to the history of our organization, we have got two databases hosted in different domains A and B. Both databases have the exact same schema. Our PBI report server is installed on a server that is hosted in domain A.

The question now I have is, is there a way I that I can set up data sources that connect to domain B database instance within our PBI report server? Also what is the best way to develop template reports that can switch between using domain A database and domain B database?

Thanks in advance.

Felix