DATA: lt_findstrings TYPE STANDARD TABLE OF string,
lt_founds TYPE STANDARD TABLE OF rsfindlst.
APPEND 'SY-UNAME' TO lt_findstrings.
CALL FUNCTION 'RS_EU_CROSSREF'
EXPORTING
i_find_obj_cls = 'STRU' " System Field
* i_scope_obj_cls = 'PROG' " Limit scope if needed
no_dialog = 'X'
TABLES
i_findstrings = lt_findstrings
o_founds = lt_founds
EXCEPTIONS
OTHERS = 1.