Need help to understand the relation bw VBKD and VBAP

Question

Hi all,
I have a requiement to display the incoterms of ship-to-party if Ship-to-party is differnt from sold-to-party.
At header level it is ok,,but at item level im facing some problems.
READ TABLE xvbkd WITH KEY vbeln = xvbap-vbeln
                                    posnr = xvbap-posnr.
          IF sy-subrc = 0.
            xvbkd-inco1 = wa_xvbkd-inco1.
            xvbkd-inco2 = wa_xvbkd-inco2.
            MODIFY xvbkd FROM wa_xvbkd INDEX sy-tabix TRANSPORTING  inco1 inco2.
          ENDIF.
Im getting the incotems but the problem is xvbkd does get populated with the items though VBAP has multiple items.
Pls help me to understand why VBKD does nt get populated with item details.
In some cases it gets populated, then it is working fine.
Your valuable suggesstion is highly appricated.
Rgs,
Priya

Answer 1

Pls help me to understand why VBKD does nt get populated with item details
Hi,
When you define a table lookup for the table VBKD (Sales document: Business data), data does not have to be present for every item in the sales document. If the item data is no different than the header data, the system does not store it in the item as well. In this case, you can find the valid values in the header data, which is stored in table VBKD under the item number "000000".
Thus, if you want to read incoterms values from VBKD, you always need to define two table lookups:
1: Table lookup in table VBKD using the key VBELN and POSNR;
2: Table lookup in table VBKD using the key VBELN and POSNR ="000000" (if the 1st lookup failed)
Regards,
Andrea