SAP MRP ：BAPI

    MD05：

call function 'BAPI_MATERIAL_MRP_LIST'
      exporting
        material         = it_sub_matnr-matnr
        plant            = it_sub_matnr-werks
        get_item_details = 'X'
        get_ind_lines    = ' '
      tables
        mrp_items        = it_mrp_items.

 

MD04：

    CALL FUNCTION 'MD_STOCK_REQUIREMENTS_LIST_API'
      EXPORTING
        matnr                    = gt_matnr-matnr
        werks                    = p_werks
      TABLES
        mdpsx                    = lt_mdps
        mdezx                    = lt_mdez
        mdsux                    = lt_mdsu
      EXCEPTIONS
        material_plant_not_found = 1
        plant_not_found          = 2
        OTHERS                   = 3.