If it is set to Defined by System, it means that SAP E-Mobility knows the charging station model, and has provided values for its connectors and its OCPP parameters. This system configuration is usually the result of a certification process.

If it is set to System Values Overwritten, SAP E-Mobility has provided values, but some of these values have been modified by a user.

If it is set to Defined by User, the charging station model is unknown. You must configure the charging station manually.