Do as highlighted in bold
INITIALIZATION.
DATA: count TYPE i.
DATA : BEGIN OF itab OCCURS 0 ,
val TYPE c LENGTH 2 ,
END OF itab.
DO 12 TIMES.
count = count + 1.
itab-val = count.
APPEND itab TO itab.
ENDDO.
SELECT-OPTIONS s_val FOR itab-val.
AT SELECTION-SCREEN ON VALUE-REQUEST FOR s_val-low.
PERFORM p_name_search_help.
*&---------------------------------------------------------------------*
*& Form P_NAME_SEARCH_HELP
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
FORM p_name_search_help .
DATA :gv_cprog TYPE sy-cprog,
gv_dynnr TYPE sy-dynnr.
gv_cprog = sy-cprog.
gv_dynnr = sy-dynnr.
DATA:lt_fie TYPE STANDARD TABLE OF dfies,
lwa_fie TYPE dfies.
lwa_fie-tabname = 'ITAB'.
lwa_fie-fieldname = 'VAL'.
lwa_fie-intlen = '2'.
lwa_fie-outputlen = '2'.
lwa_fie-datatype = 'CHAR'.
APPEND lwa_fie TO lt_fie.
CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'
EXPORTING
retfield = 'VAL'
dynpprog = gv_cprog
dynpnr = gv_dynnr
dynprofield = 'S_VAL-LOW'
value_org = 'S'
* DISPLAY = ' '
TABLES
value_tab = itab
field_tab = lt_fie
EXCEPTIONS
parameter_error = 1
no_values_found = 2
OTHERS = 3.
IF sy-subrc <> 0.
* Implement suitable error handling here
ENDIF.