Message Number list used by SAP ABAP Function Module EFG_GEN_SET_LANGUAGE (Set Language)
SAP ABAP Function Module EFG_GEN_SET_LANGUAGE (Set Language) is using
# Object Type Object Name Object Description Note
     
1 Message Number  EZ - 539 &1 is not a valid language
2 Message Number  EZ - 800 Internal error: Parameter &1 was not supplied in FM &2