sap 内部采购订单过账abap代码实现

以下是 SAP 采购订单过账的 ABAP 代码实现：

1. 首先需要定义一些变量，并且获取采购订单的相关信息。

DATA: ls_header TYPE bapi_po_header,
      lt_poitem TYPE TABLE OF bapi_po_item,
      ls_poitem TYPE bapi_po_item,
      lt_account TYPE TABLE OF bapi_po_account,
      ls_account TYPE bapi_po_account.

ls_header-po_number = '采购订单号'.
ls_header-doc_date = sy-datum.
ls_header-posting_date = sy-datum.
ls_header-username = sy-uname.

CALL FUNCTION 'BAPI_PO_GETDETAIL'
  EXPORTING
    purchaseorder = ls_header-po_number
  IMPORTING
    po_header = ls_header
    po_items = lt_poitem.

LOOP AT lt_poitem INTO ls_poitem.
  ls_poitem-po_number = ls_header-po_number.
  ls_poitem-doc_date = sy-datum.
  ls_poitem-posting_date = sy-datum.

  CALL FUNCTION 'BAPI_PO_GETACCOUNT'
    EXPORTING
      purchaseorder = ls_header-po_number
      po_item = ls_poitem-po_item
    TABLES
      po_account = lt_account.

  LOOP AT lt_account INTO ls_account.
    ls_account-po_number = ls_header-po_number.
    ls_account-po_item = ls_poitem-po_item.
    ls_account-doc_date = sy-datum.
    ls_account-posting_date = sy-datum.
  ENDLOOP.
ENDLOOP.

2. 之后需要调用 `BAPI_PO_CHANGE` 函数进行采购订单的过账。

CALL FUNCTION 'BAPI_PO_CHANGE'
  EXPORTING
    purchaseorder = ls_header-po_number
    headerdata = ls_header
  TABLES
    return = lt_return
    poitem = lt_poitem
    poaccount = lt_account.

3. 最后需要判断过账是否成功。

IF lt_return[] IS INITIAL.
  COMMIT WORK.
  WRITE: / '采购订单 ', ls_header-po_number, ' 过账成功。'.
ELSE.
  ROLLBACK WORK.
  WRITE: / '采购订单 ', ls_header-po_number, ' 过账失败。'.
ENDIF.

以上就是 SAP 采购订单过账的 ABAP 代码实现。需要注意的是，实现过程中需要根据实际情况进行相应的修改。