Correction in logic

Question

Hi Everyone,
For the enhancement V56AFCCH EXIT_SAPMV56A_001 Shipment processing: Check function code
following code is written in INCLUDE ZXV56U18.
The include program ZXV56U18 contains the logic for populating the fields VBPA-PARVW_SP and LIKP-ROUTE to the respective fields of VTTK table i.e. VTTK-TDLNR and VTTK-ROUTE.
In VT01N transaction these 2 fields should get populate..so following logic is written in user exit..
But it is not working so please make the necessary correction.
DATA: BEGIN OF ILIKP OCCURS 0,
      ROUTE LIKE LIKP-ROUTE,
      VBELN LIKE LIKP-VBELN,
      END OF ILIKP.
DATA: BEGIN OF IVBPA OCCURS 0,
      PARVW LIKE VBPA-PARVW,
      VBELN LIKE VBPA-VBELN,
      END OF IVBPA.
DATA: BEGIN OF I_XVTTK_TAB OCCURS 0,
      ROUTE LIKE VTTK-ROUTE,
      TDLNR LIKE VTTK-TDLNR,
      END OF I_XVTTK_TAB.
SELECT VBELN ROUTE INTO TABLE ILIKP FROM LIKP
       WHERE VBELN = I_xvttp_wa-VBELN.
SELECT VBELN PARVW INTO TABLE IVBPA FROM VBPA
       WHERE VBELN = I_xvttp_wa-VBELN AND
             POSNO = 0 AND
           ( PARVW = 'SP' OR PARVW = 'AG' ).
LOOP AT I_XVTTK_TAB.
  READ TABLE I_XVTTK_TAB WITH KEY VBELN = I_xvttp_wa-VBELN.
  IF SY-SUBRC = 0
    MOVE ILIKP-ROUTE TO I_XVTTK_TAB-ROUTE.
    MOVE IVBPA-PARVW TO I_XVTTK_TAB-TDLNR.
    MODIFY I_XVTTK_TAB.
  ENDIF.
ENDLOOP.
  UPDATE VTTK FROM TABLE I_XVTTK_TAB.
Points will be rewarded.
Thanks
Sonal.

Answer 1

Hi,
yes u r right..
This user exit is executed at the click of VT01N transaction.
So the click of this transaction the fields should get populated .