The following three features among other things are mentioned on the planetcrust homepage:
Data Harmonization
Cloud-to-Cloud Data Federation
Integration Gateway
Where is the implementation described in more detail? Can this be done with low code?
Or does it have to be programmed (automation script)?
Hi @rolf,
The best starting point for the Federation is following this link: Corteza Federation :: Corteza Docs. Please note, as stated in the documentation as well, this is an experimental feature so proceed with caution 
The integration gateway is explained here: Integration Gateway :: Corteza Docs
Cheers, Mia