Message Class list used by SAP ABAP Program UMG_ADD_DOWNTIME_STEP (Additional Downtime Steps)
SAP ABAP Program UMG_ADD_DOWNTIME_STEP (Additional Downtime Steps) is using
# Object Type Object Name Object Description Note
     
1 Message Class  UMG Message Class for the Unicode Migration Tool.
2 Message Class  UMGLOG Message class for the SPUMG Main Log