Hi user exit code required

Question

hi all,
      i have one requirement i.e when ever we give tcode xd06 or xd02 if customerno is there it wont accept the same customer again if customer is not there it has to insert the customer into the table. i require code for this requirement i need to write this in include called ZXF04U01and function module name is EXIT_SAPMF02D_001.
Write below custom code inside the user exit to capture CRSID information in reverse mapping input table ZW2CTREV_MAP to trigger reverse mapping.
Declare a work area WA_ZW2CTREVMAP of type ZW2CTREV_MAP.
Assign values from I_KNA1 to work area WA_ZW2CTREVMAP.
MODIFY TABLE ZW2CTREV_MAP FROM WA_ZW2CTREVMAP.
above i have shown procedure for code.  send me the actual code what i have to write in include to check customer and insert customer pls reply as early as possible.
regards
sagar

Answer 1

Hi,
Let s say
var1 is from varaible
var2 is to variable
var3 is user exit variable
USe the code like this:
DATA:
l_s_range TYPE rsr_s_rangesid,
l_s_var TYPE rrs0_s_var_range.
DATA: LOC_VAR_RANGE LIKE RRRANGEEXIT.
DATA: LOC_VAR_RANGE2 LIKE RRRANGEEXIT.
WHEN 'VAR3'.
    IF I_STEP = 2.
      LOOP AT I_T_VAR_RANGE INTO LOC_VAR_RANGE
        WHERE VNAM = 'VAR1'.
      LOOP AT I_T_VAR_RANGE2 INTO LOC_VAR_RANGE
        WHERE VNAM = 'VAR2'.
        CLEAR L_S_RANGE.
        L_S_RANGE-LOW = LOC_VAR_RANGE-LOW(8).
        L_S_RANGE-HIGH = LOC_VAR_RANGE2-LOW(8).
IF LOC_VAR_RANGE2(8) = '00000000'.
        L_S_RANGE-HIGH = LOC_VAR_RANGE-LOW(8).
ENDIF.
IF LOC_VAR_RANGE(8) = '00000000'.
        L_S_RANGE-LOW = LOC_VAR_RANGE2-LOW(8).
ENDIF.
        L_S_RANGE-SIGN = 'I'.
        L_S_RANGE-OPT  = 'BT'.
        APPEND L_S_RANGE TO E_T_RANGE.
      EXIT.
      ENDLOOP.
      EXIT.
      ENDLOOP.
    ENDIF.
With rgds,
Anil Kumar Sharma .P