获得商品可用库存

库存：
1. BAPI_MATERIAL_AVAILABILITY 获得商品可用库存

ATP information: 疑问是 标准ATP检查用的这个BAPI 吗？

2. CO_ZA_AVAILABILITY_CHECK
3. AVAILABILITY_CHECK_CONTROLLER
4. AVAILABILITY_CHECK
库存管理：
BAPI_GOODSMVT_GETDETAIL 显示货物移动的明细
BAPI_GOODSMVT_GETITEMS 显示物料凭证的详细清单
BAPI_GOODSMVT_CREATE 货物移动过帐，入库，出库
BAPI_GOODSMVT_CANCEL 冲销货物移动

**获得商品可用库存实例1：

  DATA:lv_av_qty_plt LIKE  bapicm61v-wkbst.
  DATA:ls_bapireturn TYPE bapireturn.
  DATA:lt_wmdvex     TYPE TABLE OF bapiwmdve.
  DATA:ls_wmdvex     LIKE LINE OF lt_wmdvex.
  DATA:lt_wmdvsx     TYPE TABLE OF bapiwmdvs.
  DATA:ls_wmdvsx     LIKE LINE OF lt_wmdvsx.

    DATA:lv_matnr   TYPE  matnr18.

    lv_matnr = <ls_data>-matnr.

    CALL FUNCTION 'BAPI_MATERIAL_AVAILABILITY'
      EXPORTING
        plant      = s_werks-low
        material   = lv_matnr
        unit       = <ls_data>-meins
        stge_loc   = '1000'
        batch      = <ls_data>-charg
      IMPORTING
        av_qty_plt = lv_av_qty_plt
        return     = ls_bapireturn
      TABLES
        wmdvsx     = lt_wmdvsx
        wmdvex     = lt_wmdvex.

    READ TABLE lt_wmdvex INTO ls_wmdvex WITH KEY com_date = sy-datum.
    IF sy-subrc = 0.
      <ls_data>-com_qty = ls_wmdvex-com_qty.
    ENDIF.
**当筛选界面库位=3000时，当前库存和可用库存取值相等，均取MCHB-CLABS
    IF P_LGORT = '3000'.
      <ls_data>-com_qty = <ls_data>-clabs.
    ENDIF.

 例2 转自：https://www.cnblogs.com/rockyzjut/p/3170909.html

*****ATP检测
       DATA: END_RLT LIKE EBAN-LFDAT,
             NOT_AVAILABLE,
             AVAILABLE(3),
             AVAIL_QTY_PLANT LIKE BAPICM61V-WKBST.
       DATA:xwmdvsx LIKE BAPIWMDVS OCCURS 0,
             xwmdvex LIKE BAPIWMDVE OCCURS 0.
       DATA: ls_temp type BAPIWMDVS.
       DATA: ls_temp_ex type BAPIWMDVE.

       ls_temp-REQ_DATE = ls_sale-ETDAT.
       ls_temp-REQ_QTY = ls_sale-sqty.
       append ls_temp to xwmdvsx.

       CALL FUNCTION 'BAPI_MATERIAL_AVAILABILITY'
         EXPORTING
           plant            = ls_sale-WERKS
           material         = ls_sale-MABNR
           unit             = ls_sale-meins
           check_rule       = 'A'
           STGE_LOC         = ls_sale-LGORT
*           BATCH            = ls_sale-CHARG
           CUSTOMER         = ls_first
*          DOC_NUMBER       = SALESDOCUMENT
           ITM_NUMBER       = ls_sale-POSNR
           DEC_FOR_ROUNDING = '0'
         IMPORTING
           endleadtme       = end_rlt
           av_qty_plt       = avail_qty_plant
           dialogflag       = not_available
         TABLES
           wmdvsx           = xwmdvsx
           wmdvex           = xwmdvex
         EXCEPTIONS
           error_message    = 1.

       read table xwmdvex index 1 into ls_temp_ex.