Problem in customer exit

Question

Hi all,
        I wrote a customer exit and debugged that and the coede was working fine but i am not able to see the result in the query.Can anyone of you suggest what are the possible causes for this.

Answer 1

Here is the code which i had written.
DATA: l_s_range type rsr_s_rangesid.
data: loc_var_range like rrrangeexit.
DATA: v_pre1(2) type c.
DATA: v_pre2(2) type c.
CASE: I_VNAM.
  when 'Z_MTD_PREBAL'.
    if i_step = 2.
      loop at i_t_var_range into loc_var_range
      where vnam = '0P_FPER'.
        clear l_s_range.
        l_s_range-low(4) = loc_var_range-low(4).
        v_pre1 = loc_var_range-low+4(3) - 1.
        if v_pre1 < 10.
        l_s_range-low+4(2) = '00'.
        l_s_range-low+6(1) =  v_pre1.
        else.
        l_s_range-low+4(1) = '0'.
        l_s_range-low+5(2) =  v_pre1.
        endif.
       l_s_range-sign = 'I'.
       l_s_range-opt = 'EQ'.
      Append l_s_range to e_t_range.
exit.
endloop.
endif.
This code is used to display the previous month's balance based on the user input for fiscal period(YYYYMMM).MMM stands for the period.
hence, the key figure has been restricted on Fiscal period which has a customer exit variable. the code for the same is as above.