This is the code i have written in my program, please tell me what is wrong with this code
MODULE GET_VALUES INPUT.
IF ZSDPROJECT1-TYPE IS NOT INITIAL.
IF ZSDPROJECT1-TYPE = '1'.
SELECT EMP_CODE
DOJ
NAME
FROM ZDST INTO TABLE IT_ZDST.
SORT IT_ZDST BY EMP_CODE NAME.
DELETE ADJACENT DUPLICATES FROM IT_ZDST COMPARING EMP_CODE NAME.
s_mapping-fldname = 'F0001'.
s_mapping-dyfldname = 'NAME'.
APPEND s_mapping TO t_mapping.
CLEAR s_mapping.
s_mapping-fldname = 'F0002'.
s_mapping-dyfldname = 'EMP_CODE'.
APPEND s_mapping TO t_mapping.
CLEAR s_mapping.
IF IT_ZDST[] IS NOT INITIAL.
CALL FUNCTION 'F4IF_INT_TABLE_VALUE_REQUEST'
EXPORTING
* DDIC_STRUCTURE = ' '
RETFIELD = 'NAME'
* PVALKEY = ' '
DYNPPROG = SY-REPID
DYNPNR = SY-DYNNR
DYNPROFIELD = 'ZSDPROJECT1-RM_NAME'
* STEPL = 0
WINDOW_TITLE = 'Select the Value'
* VALUE = ' '
VALUE_ORG = 'S'
* MULTIPLE_CHOICE = ' '
* DISPLAY = ' '
* CALLBACK_PROGRAM = ' '
* CALLBACK_FORM = ' '
* CALLBACK_METHOD =
* MARK_TAB =
* IMPORTING
* USER_RESET =
TABLES
VALUE_TAB = IT_ZDST
* FIELD_TAB =
RETURN_TAB = T_RETURN
DYNPFLD_MAPPING = T_MAPPING
EXCEPTIONS
PARAMETER_ERROR = 1
NO_VALUES_FOUND = 2
OTHERS = 3
.
IF SY-SUBRC <> 0.
* Implement suitable error handling here
ENDIF.
ENDIF.
ENDMODULE.