The Log Data operation saves data from the previous process step as file in the database. The Log Data operation expects a file as input. The filename is saved in the filename parameter.
The output of the operation Log Batch Message can be displayed in the X4 Control Center in the Web App X4 Process Monitor (tab BAM Log).
Further information on the X4 Control Center and the X4 Process Monitor Web App can be found in the X4 Control Center Guide.