Message Class list used by SAP ABAP Program RDDFDBCK (Message After Exporting or Importing Requests)
SAP ABAP Program RDDFDBCK (Message After Exporting or Importing Requests) is using
# Object Type Object Name Object Description Note
     
1 Message Class  D0 Machine-level ABAP/4 Dictionary texts (e.g. debugging)
2 Message Class  PU Upgrade and Transport Log Messages
3 Message Class  TK Transport Organizer