In the Backend Settings you define the backend system parameters for handling the connection with your SAP ERP system.
ERP System ID: That is the three character long System ID. (SID) for example P01.
ERP System Name: A description of the system
ERP System Client:
Logical System: Logical system defined in the SAP ERP backend for the proconarum platform.
It is used for communicating with the SAP ERP for example via IDoc interchange.