Message Number list used by SAP ABAP Program LSXPGFXX (General Routines for Starting/Ending External Programs)
SAP ABAP Program LSXPGFXX (General Routines for Starting/Ending External Programs) is using
# Object Type Object Name Object Description Note
     
1 Message Number  BT - 602 CPIC error &
2 Message Number  BT - 603 Parameter & is empty or invalid (&)
3 Message Number  BT - 604 Failed to receive external program protocol