BAPI_SALESORDER_CREATEFROMDAT2提供参数无成本中心字段，所以需要用扩展字段实现。

BAPE_VBAK：

 BAPE_VBAKX

 VBAKKOZ

 VBAKKOZX

 封装扩展结构：

  DATA:
    LS_EXTENSION TYPE BAPIPAREX,
    LT_EXTENSION TYPE TABLE OF BAPIPAREX.

DATA: LS_BAPE_VBAK  TYPE BAPE_VBAK,
        LS_BAPE_VBAKX TYPE BAPE_VBAKX.

      CLEAR  LS_BAPE_VBAK .
      CLEAR  LS_BAPE_VBAKX .
      LS_BAPE_VBAK-KOSTL = LS_TEMP-KOSTL .
      LS_BAPE_VBAKX-KOSTL = 'X' .
      LS_EXTENSION-STRUCTURE = 'BAPE_VBAK' .
      LS_EXTENSION+30 = LS_BAPE_VBAK .
      APPEND LS_EXTENSION TO LT_EXTENSION .
      LS_EXTENSION-STRUCTURE = 'BAPE_VBAKX' .
      LS_EXTENSION+30 = LS_BAPE_VBAKX .
      APPEND LS_EXTENSION TO LT_EXTENSION .

 CALL FUNCTION 'BAPI_SALESORDER_CREATEFROMDAT2'
        EXPORTING
          ORDER_HEADER_IN     = LS_HEADER_IN
          LOGIC_SWITCH        = LS_LOGIC_SWITCH
     "    order_header_inx    = ls_header_inx
          TESTRUN             = LV_TESTRUN
        IMPORTING
          SALESDOCUMENT       = LV_VBELN
        TABLES
          RETURN              = LT_RETURN
          ORDER_ITEMS_IN      = LT_ITEMS_IN
    "     order_items_inx     = lt_items_inx
          ORDER_PARTNERS      = LT_PARTNERS
          ORDER_SCHEDULES_IN  = LT_SCHEDULES_IN
          ORDER_CONDITIONS_IN = LT_CONDITION
*         ORDER_CONDITIONS_INX = LT_CONDITIONX
          EXTENSIONIN         = LT_EXTENSION
          ORDER_TEXT          = LT_TEXT.