【转自http://blog.csdn.net/lyb_yt/article/details/17962609】
进来遇到一个创建供应商的需求，由于在系统中关于供应商和客户的创建比较特殊，且没有相关函数进行创建，

找到一个类和方法来创建，类名：VMD_EI_API  方法名：MAINTAIN_DIRECT_INPUT，类似的

* 供应商表头
  ls_vendors-header-object_instance-lifnr = lv_vendor.  "供应商
  ls_vendors-header-object_task = ‘M‘.              "创建/更改
* 通用数据
  ls_vendors-central_data-central-data-stceg       = stceg.      "增值税登记号
  ls_vendors-central_data-central-data-ktokk       = ‘0001‘.     "账户组
  ls_vendors-central_data-central-data-j_1kfrepre  = j_1kfrepre. "代表名称
  ls_vendors-central_data-central-datax-stceg      = ‘X‘.        "增值税登记号
  ls_vendors-central_data-central-datax-ktokk      = ‘X‘.        "账户组
  ls_vendors-central_data-central-datax-j_1kfrepre = ‘X‘.        "代表名称
* 电话
  ls_phone-contact-data-telephone = phone.
  APPEND ls_phone TO ls_vendors-central_data-address-communication-phone-phone.
  CLEAR ls_phone.
* 邮箱
  ls_smtp-contact-data-e_mail      = smtp.
  APPEND ls_smtp TO ls_vendors-central_data-address-communication-smtp-smtp.
  CLEAR ls_smtp.

  ls_vendors-central_data-address-postal-data-name         = name.       "名称
  ls_vendors-central_data-address-postal-data-name_2       = name.       "名称
  ls_vendors-central_data-address-postal-data-sort1        = sort1.      "属性（SAP为搜索项 1）
  ls_vendors-central_data-address-postal-data-street       = street.     "街道/门牌号
  ls_vendors-central_data-address-postal-data-postl_cod1   = postl_cod1. "邮政编码
  ls_vendors-central_data-address-postal-data-city         = city.       "城市
  ls_vendors-central_data-address-postal-data-country      = country.    "国家
  ls_vendors-central_data-address-postal-data-region       = region.     "地区
  ls_vendors-central_data-address-postal-data-langu        = ‘1‘.        "语言
  ls_vendors-central_data-address-postal-datax-name        = ‘X‘.
  ls_vendors-central_data-address-postal-datax-name_2      = ‘X‘.
  ls_vendors-central_data-address-postal-datax-sort1       = ‘X‘.
  ls_vendors-central_data-address-postal-datax-street      = ‘X‘.
  ls_vendors-central_data-address-postal-datax-postl_cod1  = ‘X‘.
  ls_vendors-central_data-address-postal-datax-city        = ‘X‘.
  ls_vendors-central_data-address-postal-datax-country     = ‘X‘.
  ls_vendors-central_data-address-postal-datax-region      = ‘X‘.
  ls_vendors-central_data-address-postal-datax-langu       = ‘X‘.
* 采购组织数据
  ls_purchasing-task = ‘M‘.
  ls_purchasing-data_key-ekorg = ‘1000‘.
  ls_purchasing-data-waers = waers.
  ls_purchasing-data-verkf = verkf.
  ls_purchasing-data-telf1 = telf1.
  ls_purchasing-data-eikto = eikto.
  ls_purchasing-data-webre  = ‘X‘.
  ls_purchasing-datax-waers = ‘X‘.
  ls_purchasing-datax-verkf = ‘X‘.
  ls_purchasing-datax-telf1 = ‘X‘.
  ls_purchasing-datax-webre = ‘X‘.
  ls_purchasing-datax-eikto = ‘X‘.

  IF requesttype = ‘CREATE‘.
    ls_functions-task = ‘I‘.
    ls_functions-data_key-parvw = ‘BA‘.
    ls_functions-data-defpa = ‘‘.
    ls_functions-data-partner = lv_vendor.
    ls_functions-datax-defpa = ‘X‘.
    ls_functions-datax-partner = ‘X‘.
    APPEND ls_functions TO lt_functions.
    ls_functions-data_key-parvw = ‘LF‘.
    ls_functions-data-defpa = ‘‘.
    ls_functions-data-partner = lv_vendor.
    ls_functions-datax-defpa = ‘X‘.
    ls_functions-datax-partner = ‘X‘.
    APPEND ls_functions TO lt_functions.
    ls_functions-data_key-parvw = ‘RS‘.
    ls_functions-data-defpa = ‘‘.
    ls_functions-data-partner = lv_vendor.
    ls_functions-datax-defpa = ‘X‘.
    ls_functions-datax-partner = ‘X‘.
    APPEND ls_functions TO lt_functions.
    ls_purchasing-functions-functions = lt_functions.
  ENDIF.
  APPEND ls_purchasing TO ls_vendors-purchasing_data-purchasing.
  CLEAR ls_purchasing.

  APPEND ls_vendors TO lt_vendors.
  CLEAR ls_vendors.
  ls_main-vendors = lt_vendors.

* 创建或者更新供应商
  CALL METHOD vmd_ei_api=>maintain_direct_input
    EXPORTING
      is_master_data           = ls_main
    IMPORTING
      es_master_data_correct   = l1
      es_message_correct       = l2
      es_master_data_defective = l3
      es_message_defective     = l4.
  IF l4-is_error = ‘‘.
    CALL FUNCTION ‘BAPI_TRANSACTION_COMMIT‘
      EXPORTING
        wait = ‘X‘.
    return_status = ‘S‘.
    IF requesttype = ‘CREATE‘.
      return_value = ‘供应商创建成功！‘.
    ELSEIF requesttype = ‘UPDATE‘.
      return_value = ‘供应商更新成功！‘.
    ENDIF.
    sapcode = lv_vendor.
  ELSE.
    CALL FUNCTION ‘BAPI_TRANSACTION_ROLLBACK‘.
    return_status = ‘F‘.
    CLEAR ls_message.
    READ TABLE l4-messages INTO ls_message WITH KEY type = ‘E‘.
    IF sy-subrc = 0.
      MESSAGE ID ls_message-id              
TYPE ls_message-type              
NUMBER ls_message-number              
WITH  ls_message-message_v1                    ls_message
-message_v2                    ls_message
-message_v3                    ls_message
-message_v4              
INTO return_value.    
ENDIF.  
ENDIF.

SAP供应商和客户的创建