Cmod code to fetch line item data

Question

Hi Experts,
I have appended 2lis_11_VAHDR the field X.
I want to populate this field with the data of field X from VBAP table ( SO Item table).
But since the data source is a header i.e. it will have only one record aganist each SO.
In table VBAP, for each SO there may be one or multiple items.
But for the field X in 2lis_11_VAHDR it should pick only first item ( 10 or 20 or 30 etc) field X value.
I have tried with this code:
===================================
WHEN '2LIS_11_VAHDR'.
loop at C_T_DATA into WA_MC11VA0HDR.
L_tabix = sy-tabix.
SELECT X FROM VBAP INTO WA_MC11VA0HDR-X
  WHERE VBELN = WA_MC11VA0HDR-VBELN.
modify C_T_DATA from WA_MC11VA0HDR index l_tabix.
Endselect.
Endloop.
===============================
But it is not picking first one i.e. 10, it is picking the value of X against last item 30 ( say 10,20,30 are items in a SO)
Kindly suggest how to achieve this.
Thanks & Regards,
Bhadri M.

Answer 1

Hi All,
Thanks for your valuable replies.
My requirement is met. Please find the final code:
======================
WHEN '2LIS_11_VAHDR'.
loop at C_T_DATA into WA_MC11VA0HDR.
L_tabix = sy-tabix.
*break-point.
SELECT PERNR FROM VBPA INTO WA_MC11VA0HDR-ZZPERNR WHERE VBELN = WA_MC11VA0HDR-VBELN
                    and PARVW = 'Z2'.
modify C_T_DATA from WA_MC11VA0HDR index l_tabix.
ENDSELECT.
SELECT VBELN POSNR ABGRU FROM VBAP INTO WA_SO_DOCNO
WHERE VBELN = WA_MC11VA0HDR-VBELN.
APPEND WA_SO_DOCNO TO LT_SO_DOCNO.
SORT LT_SO_DOCNO BY VBELN POSNR ASCENDING.
DELETE ADJACENT DUPLICATES FROM LT_SO_DOCNO COMPARING VBELN.
CLEAR WA_SO_DOCNO.
Read table LT_SO_DOCNO into WA_SO_DOCNO with key VBELN = WA_MC11VA0HDR-VBELN.
    RESULT = wa_sy_docst-/BIC/OIYHSTAT.
WA_MC11VA0HDR-ZZABGRU = WA_SO_DOCNO-ABGRU.
modify C_T_DATA from WA_MC11VA0HDR index l_tabix.
ENDSELECT.
*ENDSELECT.
ENDLOOP.
========================
It works even with following code as suggested,
+SELECT X FROM VBAP INTO WA_MC11VA0HDR-X+
+WHERE VBELN = WA_MC11VA0HDR-VBELN+
++and      posnr  = '00010'.
+but the problem here is '00010' will not be there always in the SO, sometimes it will be directly 20 or 30 or etc
Closing the thread.
Points assigned.
Thanks & Regards,
Bhadri M.
Edited by: Bhadri M on Dec 29, 2011 2:28 PM