To enable SAP Sales and Service Cloud to work seamlessly together with SAP S/4HANA, it's necessary for both solutions to exchange master data. Typically, SAP S/4HANA is already in place prior to the implementation of SAP Sales Cloud or SAP Service Cloud. Hence, SAP S/4HANA is usually treated as the leading system from where master data needs to be loaded initially to SAP Sales and Service Cloud.
Some business objects can be edited in SAP Sales and Service Cloud and sent back to SAP S/4HANA, for instance, account and contact master data. These objects can be replicated bi-directionally. Other business objects may only be edited in the leading system and hence, they can only be replicated in one direction: uni-directional, meaning from SAP S/4HANA to SAP Sales and Service Cloud. For instance, product categories and product master data.
The following graphic gives an overview of the various master data business objects that can be replicated between SAP S/4HANA, SAP Sales Cloud, and SAP Service Cloud:
For more details, see the Integration Package on SAP Business Accelerator Hub.