BAPI_PO_CREATE1 multiple schedule lines cann't create ECC500

Question

Dear all:
   I want to use BAPI_PO_CREATE1 to create more than one purchase order schedule item for a purchase order item .However, the system either posts the first purchase order schedule line or the BAPI terminates the posting with an error message. I have found SAP NOTES (828582) try to solve the problem . But it was no use.
   My SAP system component information is SAP_APPL     500     0012     SAPKH50012 .
   I attach test program as follows:
   REPORT  ZPO_CREATE.
DATA: HEADER LIKE BAPIMEPOHEADER,
      HEADERX LIKE BAPIMEPOHEADERX,
      EXPHEADER LIKE BAPIMEPOHEADER,
      TESTRUN  LIKE BAPIFLAG-BAPIFLAG,
      ITEM LIKE BAPIMEPOITEM OCCURS 0 WITH HEADER LINE,
      ITEMX LIKE BAPIMEPOITEMX OCCURS 0 WITH HEADER LINE,
      POSCHEDULE LIKE BAPIMEPOSCHEDULE OCCURS 0 WITH HEADER LINE,
      POSCHEDULEX LIKE BAPIMEPOSCHEDULX OCCURS 0 WITH HEADER LINE,
      POTEXTHEADER LIKE BAPIMEPOTEXTHEADER OCCURS 0 WITH HEADER LINE,
      POTEXTITEM LIKE BAPIMEPOTEXT OCCURS 0 WITH HEADER LINE,
      RETURN LIKE BAPIRET2 OCCURS 0 WITH HEADER LINE.
START-OF-SELECTION.
*<<<< HEADER
  HEADER-COMP_CODE = '1000'.
  HEADER-DOC_TYPE = 'NB'.
  HEADER-CREAT_DATE = SY-DATUM.
  HEADER-CREATED_BY = SY-UNAME.
  HEADER-VENDOR = '0000000063'.
  HEADER-LANGU = SY-LANGU.
  HEADER-PURCH_ORG = '1000'.
  HEADER-PUR_GROUP = '100'.
  HEADER-CURRENCY = 'RMB'.
  HEADER-DOC_DATE = SY-DATUM.
  HEADERX-COMP_CODE = 'X'.
  HEADERX-DOC_TYPE = 'X'.
  HEADERX-CREAT_DATE = 'X'.
  HEADERX-CREATED_BY = 'X'.
  HEADERX-VENDOR = 'X'.
  HEADERX-LANGU = 'X'.
  HEADERX-PURCH_ORG = 'X'.
  HEADERX-PUR_GROUP = 'X'.
  HEADERX-CURRENCY = 'X'.
  HEADERX-DOC_DATE = 'X'.
<<<< ITEM
  CLEAR ITEM.
  ITEM-PO_ITEM = '00010'.
  ITEM-MATERIAL = 'K01060'.
  ITEM-PLANT = '1000'.
  ITEM-QUANTITY = 20.
  ITEM-PO_UNIT = 'LIN'.
  ITEM-NET_PRICE = 310.
  ITEM-TAX_CODE = 'J2'.
  ITEM-PO_PRICE = 1.
  ITEM-FINAL_INV = 'X'.
  ITEM-IR_IND = 'X'.
  APPEND ITEM.
  ITEMX-PO_ITEM = '00010'.
  ITEMX-MATERIAL = 'X'.
  ITEMX-PLANT = 'X'.
  ITEMX-QUANTITY = 'X'.
  ITEMX-PO_UNIT = 'X'.
  ITEMX-NET_PRICE = 'X'.
  ITEMX-TAX_CODE = 'X'.
  ITEMx-PO_PRICE = 'X'.
  ITEMX-FINAL_INV = 'X'.
  ITEMX-IR_IND = 'X'.
  APPEND ITEMX.
**************schedule lines   doesn't effect or make error when post po
POSCHEDULE-PO_ITEM = 10 .
POSCHEDULE-SCHED_LINE = 1.
POSCHEDULE-DELIVERY_DATE = SY-DATUM .
POSCHEDULE-QUANTITY = 5 .
APPEND POSCHEDULE.
POSCHEDULE-PO_ITEM = 10 .
POSCHEDULE-SCHED_LINE = 2 .
POSCHEDULE-DELIVERY_DATE = SY-DATUM .
POSCHEDULE-QUANTITY = 15 .
APPEND POSCHEDULE.
POSCHEDULEX-PO_ITEM = 10 .
POSCHEDULEX-SCHED_LINE = 1.
POSCHEDULEX-DELIVERY_DATE = 'X' .
POSCHEDULEX-QUANTITY = 'X' .
APPEND POSCHEDULEX.
POSCHEDULEX-PO_ITEM = 10 .
POSCHEDULEX-SCHED_LINE = 2.
POSCHEDULEX-DELIVERY_DATE = 'X' .
POSCHEDULEX-QUANTITY = 'X' .
APPEND POSCHEDULEX.
CALL FUNCTION 'BAPI_PO_CREATE1'
    EXPORTING
      POHEADER                     = HEADER
      POHEADERX                    = HEADERX
      NO_PRICE_FROM_PO             = 'X'
    IMPORTING
     EXPHEADER                    = EXPHEADER
    TABLES
      RETURN                      = RETURN
     POITEM                       = ITEM
     POITEMX                      = ITEMX
     POSCHEDULE                   = POSCHEDULE
     POSCHEDULEX                  = POSCHEDULEX 
  LOOP AT RETURN .
    WRITE : /  RETURN-TYPE,
               RETURN-ID,
               RETURN-NUMBER,
               RETURN-MESSAGE.
    CLEAR RETURN.
  ENDLOOP.
  IF NOT EXPHEADER IS INITIAL.
     CALL FUNCTION 'BAPI_TRANSACTION_COMMIT'  .
  ENDIF.
  I am full of grateful for you can solve my problem . Thanks a lot!
  Best regards.
                                   Daniel fu  2006-08-27

Answer 1

I guess u need to add
POSCHEDULEX-PO_ITEMX = X.
before appending the table Parameter POSCHEDULEX
One for each append statement on table internal table POSCHEDULEX
Regards
Alok Pathak