Message Class list used by SAP ABAP Class CL_COSTING_BOM (Costed Multilevel BOM)
SAP ABAP Class CL_COSTING_BOM (Costed Multilevel BOM) is using
# Object Type Object Name Object Description Note
     
1 Message Class  0K Messages for "General List Modules"
2 Message Class  KN Reporting for Costing