Message Class list used by SAP ABAP PINF ME_INTERNAL (ME_INTERNAL)
SAP ABAP PINF ME_INTERNAL (ME_INTERNAL) is using
# Object Type Object Name Object Description Note
     
1 Message Class  06 Purchasing Document
2 Message Class  ME Purchasing: General Messages
3 Message Class  MEPO New Purchase Order Dialog
4 Message Class  MPN System Messages re Manufacturer Part Number Management