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.