SAP採購訂單入庫後不容許修改單價加強

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*& 包含               ZXM06U43
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data: sum_menge type ekbe-menge.

if sy-tcode = 'ME22N' or sy-tcode = 'ME22'.

  loop at tekpo.

    "判斷是否有入庫記錄
    select menge,shkzg into table @data(lt_ekbe)
      from ekbe
      where ebeln = @tekpo-ebeln
        and ebelp = @tekpo-ebelp
        and bewtp = 'E'.

    loop at lt_ekbe assigning field-symbol(<ls_ekbe>).
      if <ls_ekbe>-shkzg = 'S'.
        sum_menge = sum_menge + <ls_ekbe>-menge.
      else.
        sum_menge = sum_menge - <ls_ekbe>-menge.
      endif.
    endloop.

    check sum_menge > 0."有入庫記錄
    sum_menge = 0.

    select kposn, "項目
           kschl, "條件類型
           kbetr  "價格
      into table @data(lt_price)
      from prcd_elements
      where knumv = @i_ekko-knumv
        and kposn = @tekpo-ebelp.

    read table lt_price assigning field-symbol(<ls_price>) with key kposn  = tekpo-ebelp "是否有新增條件
                                                                    kschl  = 'PBXX'.
    if sy-subrc = 0.

      read table tkomv assigning field-symbol(<ls_komv>) with key kschl = 'PBXX'.
      if sy-subrc = 0.
        if <ls_price>-kbetr <> <ls_komv>-kbetr.                                           "修改了價格
          message e899(mm) with tekpo-ebeln tekpo-ebelp '因爲已經收貨，不容許修改價格。'.
        endif.

      else.                                                                               "刪除了價格
        message e899(mm) with tekpo-ebeln tekpo-ebelp '因爲已經收貨，不容許修改價格。'.
      endif.

    else."原po沒有新增條件價格，

      read table tkomv with key kschl = 'PBXX' transporting no fields.
      if sy-subrc = 0.                                                                    "新增了價格
        message e899(mm) with tekpo-ebeln tekpo-ebelp '因爲已經收貨，不容許修改價格。'.
      endif.
    endif.
  endloop.

endif.