To take advantage of SAP HANA for application development, SAP introduced a new data modeling infrastructure known as core data services. With core data services, data models are defined and consumed on the database rather than on the application server. SAP S/4HANA takes advantage of the new capabilities provided by core data services. For example, it uses compatibility views, which are a variant of core data services views.
It is crucial to identify whether compatibility views are in use when replicating data using the SAP Landscape Transformation Replication Server and the way it replicates them.
To find out more, explore Compatability Views and SAP Landscape Transformation Replication Server.