Added by System appears when SAP E-Mobility recognizes the charging station and automatically provides the OCPP parameter.

System Value Overwritten appears when SAP E-Mobility provides the OCPP parameter, but a user modifies the Active Value. You can see the initial system value in the Recommended Value column.

Added by User appears when SAP E-Mobility does not provide the OCPP parameter. This can happen if the system does not recognize the charging station, or if it recognizes the station but does not provide this specific parameter. In both cases, a user has added the parameter manually.