Message Number list used by SAP ABAP Program LRRSVF04 (Callback routines for F4 help in tree display)
SAP ABAP Program LRRSVF04 (Callback routines for F4 help in tree display) is using
# Object Type Object Name Object Description Note
     
1 Message Number  R9 - 027 Empty selection
2 Message Number  R9 - 028 Node selection not possible
3 Message Number  R9 - 029 Select one row only
4 Message Number  R9 - 081 Position cursor on a valid sort field