Hello Jenny, there is this learning journey https://learning.sap.com/learning-journeys/get-started-with-in-app-extensibility-in-sap-s-4hana where one gets an overview and detailed informations about extending with SAP S/4HANA (all editions). This I w...

Hello Jenny, what exactly do you mean with "in house"? BR Christian

Hello Jenny,

No, your custom CDS view will be clearly separated from the Core.