The generated physical (binary) file should be used in the MAPSET configuration file. See Mapset Configuration File.tcxmapgen — CICS Runtime MAPSET Generator.To compile the BMS source file file.map, issue the following command:The resulting binary mapset file is file.mpdef.The CESN transaction uses MAPSET CSIGNON. So the following MAPSET definition must be added to the MAPSET configuration file ${KIXCONFIG}/mapsets.desc if CESN transaction is required: