Message Number list used by SAP ABAP Program LFMRVF01 (Own Form Routines (Not Generated))
SAP ABAP Program LFMRVF01 (Own Form Routines (Not Generated)) is using
# Object Type Object Name Object Description Note
     
1 Message Number  RE - 303 Reference type & cannot be deleted; It is still being used
2 Message Number  RE - 304 Field status variant &1 is still used for company code &2
3 Message Number  RE - 305 Field status group &1 is still used in document &2, doc. typ &3