Message Class list used by SAP ABAP Program RSDB2TOPO (ALV tree control: build up the hierarchy tree)
SAP ABAP Program RSDB2TOPO (ALV tree control: build up the hierarchy tree) is using
# Object Type Object Name Object Description Note
     
1 Message Class  00 General Basis texts
2 Message Class  D3 CCMS - DB2 on OS390
3 Message Class  SDB2U DB2/390: Messages for Function Group SDB2U