Message Class list used by SAP ABAP Program RHUSERRELATIONS (Display User Assignments)
SAP ABAP Program RHUSERRELATIONS (Display User Assignments) is using
# Object Type Object Name Object Description Note
     
1 Message Class  01 General Basis, e.g. user and authorization maintenance
2 Message Class  5A Basis Personnel Management
3 Message Class  5W Messages for PD (Particularly Workflow)
4 Message Class  PG Error Messages for Master Data Programs