网上查阅相关设备维修工单的函数时发现资料甚少，所以介绍下维修工单创建的函数BAPI_ALM_ORDER_MAINTAIN以及简单的创建方法和注意点。
函数本身结构并不复杂，基本我们需要创建的部分包括抬头、工序（服务、组件）等。
函数与创建工单不同的地方在于其传入表it_methods，这里面填写创建工单的各个步骤，在创建工单时下面三个方法必不可少：
" Header
ls_methods-refnumber = 1 .
ls_methods-objecttype = 'HEADER' .
ls_methods-objectkey = '%00000000001' .
ls_methods-method = 'CREATE' .
APPEND ls_methods TO lt_methods .
CLEAR ls_methods .
" Operation
ls_methods-refnumber = 1.
ls_methods-objecttype = 'OPERATION' .
ls_methods-objectkey = '%00000000001' .
ls_methods-method = 'CREATE'.
APPEND ls_methods TO lt_methods .
CLEAR ls_methods .
" Save
ls_methods-method = 'SAVE' .
APPEND ls_methods TO lt_methods .
CLEAR ls_methods .
对于不同的对象有不同的方法与之对应来实现创建更改删除等动作，之后按项目需要将抬头、工序等信息填写完整，其中服务与组件是和工序相关的，要保证活动编号一致才能正确的分配至工序。
附上示例：
DATA: lt_return_o TYPE STANDARD TABLE OF bapiret2, ls_return_o TYPE bapiret2, lt_numbers TYPE STANDARD TABLE OF bapi_alm_numbers, ls_numbers TYPE bapi_alm_numbers, lt_methods TYPE STANDARD TABLE OF bapi_alm_order_method, ls_methods TYPE bapi_alm_order_method, lt_header_i TYPE STANDARD TABLE OF bapi_alm_order_headers_i, ls_header_i TYPE bapi_alm_order_headers_i, lt_header_up TYPE STANDARD TABLE OF bapi_alm_order_headers_up, ls_header_up TYPE bapi_alm_order_headers_up, lt_operation_i TYPE STANDARD TABLE OF bapi_alm_order_operation, ls_operation_i TYPE bapi_alm_order_operation, lt_operation_up TYPE STANDARD TABLE OF bapi_alm_order_operation_up, ls_operation_up TYPE bapi_alm_order_operation_up, lt_component_i TYPE STANDARD TABLE OF bapi_alm_order_component, ls_component_i TYPE bapi_alm_order_component, lt_component_up TYPE STANDARD TABLE OF bapi_alm_order_component_up, ls_component_up TYPE bapi_alm_order_component_up, lt_servicelines TYPE STANDARD TABLE OF bapi_alm_srv_service_line, ls_servicelines TYPE bapi_alm_srv_service_line, lt_servicelines_up TYPE STANDARD TABLE OF bapi_alm_srv_service_line_up, ls_servicelines_up TYPE bapi_alm_srv_service_line_up.
" Header ls_methods-refnumber = 1 . ls_methods-objecttype = 'HEADER' . ls_methods-objectkey = '%00000000001' . ls_methods-method = 'CREATE' . APPEND ls_methods TO lt_methods . CLEAR ls_methods . " Operation ls_methods-refnumber = 1. ls_methods-objecttype = 'OPERATION' . ls_methods-objectkey = '%00000000001' . ls_methods-method = 'CREATE'. APPEND ls_methods TO lt_methods . CLEAR ls_methods . LOOP AT lt_component INTO ls_component. " Operation ls_methods-refnumber = sy-tabix. ls_methods-objecttype = 'COMPONENT' . ls_methods-objectkey = '%000000000010010' . ls_methods-method = 'CREATE'. APPEND ls_methods TO lt_methods . CLEAR ls_methods . ENDLOOP. IF ls_header-tbtwr IS NOT INITIAL. " Servicelines ls_methods-refnumber = 1 . ls_methods-objecttype = 'SERVICELINE' . ls_methods-objectkey = '%000000000010010' . ls_methods-method = 'CREATE' . APPEND ls_methods TO lt_methods . CLEAR ls_methods . ENDIF. " Save ls_methods-method = 'SAVE' . APPEND ls_methods TO lt_methods . CLEAR ls_methods . CLEAR:lt_header_i,ls_header_i,lt_header_up,ls_header_up. ls_header_i-orderid = '%00000000001'. " 订单号 ls_header_i-order_type = *. " 订单类型 ls_header_i-planplant = *. " 维护计划工厂 ls_header_i-mn_wk_ctr = *. " 维护任务的工作中心 SELECT * FROM crhd UP TO 1 ROWS INTO ls_crhd WHERE arbpl = *.ENDSELECT. IF sy-subrc = 0. ls_header_i-plant = ls_crhd-werks. " 与工作中心职责相关联的工厂 ENDIF. ls_header_i-equipment = *. " 设备号 ls_header_i-plangroup = *. " 计划员组 ls_header_i-short_text = *. " 描述 APPEND ls_header_i TO lt_header_i. ls_header_up-orderid = '%00000000001'. ls_header_up-mn_wk_ctr = 'X'. ls_header_up-plant = 'X'. ls_header_up-equipment = 'X'. ls_header_up-plangroup = 'X'. ls_header_up-short_text = 'X'. APPEND ls_header_up TO lt_header_up. ls_operation_i-activity = '0010'. " 活动编号 IF ls_header-tbtwr IS NOT INITIAL. ls_operation_i-control_key = *. " 控制码 ELSE. ls_operation_i-control_key = *. " 控制码 ENDIF. ls_operation_i-description = *. " 工序短文本 ls_operation_i-plant = *. " 工厂 ls_operation_i-work_cntr = *. " 工作中心 ls_operation_i-matl_group = *. " 物料组 ls_operation_i-pur_group = *. " 采购组 ls_operation_i-purch_org = *. " 采购组织 APPEND ls_operation_i TO lt_operation_i. CLEAR ls_operation_i. ls_operation_up-activity = 'X'. ls_operation_up-control_key = 'X'. ls_operation_up-description = 'X'. ls_operation_up-plant = 'X'. ls_operation_up-work_cntr = 'X'. ls_operation_up-matl_group = 'X'. ls_operation_up-pur_group = 'X'. ls_operation_up-purch_org = 'X'. APPEND ls_operation_up TO lt_operation_up. CLEAR ls_operation_up. IF ls_header-tbtwr IS NOT INITIAL. CLEAR:lt_servicelines,ls_servicelines,lt_servicelines_up,ls_servicelines_up. ls_servicelines-activity = '0010'. " 活动编号 ls_servicelines-srv_line = '0000000010'. " 行号 ls_servicelines-short_text = *. " 短文本 ls_servicelines-quantity = *. " 数量带标记 ls_servicelines-uom = *. " 基本计量单位 ls_servicelines-gross_price = *. " 总价 ls_servicelines-net_price = *. " 净价 APPEND ls_servicelines TO lt_servicelines. ls_servicelines_up-activity = '0010'. ls_servicelines_up-srv_line = '0000000010'. ls_servicelines_up-short_text = 'X'. ls_servicelines_up-quantity = 'X'. ls_servicelines_up-uom = 'X'. ls_servicelines_up-gross_price = 'X'. ls_servicelines_up-net_price = 'X'. APPEND ls_servicelines_up TO lt_servicelines_up. ENDIF. CLEAR:lt_component_i,ls_component_i,lt_component_up,ls_component_up. LOOP AT lt_component INTO ls_component. ls_component_i-item_number = *. " BOM 项目号 ls_component_i-item_text1 = *. " 描述 ls_component_i-plant = *. " 工厂 ls_component_i-requirement_quantity = *. " 需求数量 ls_component_i-requirement_quantity_unit = *. " 单位 ls_component_i-pur_group = *. " 采购组 ls_component_i-purch_org = *. " 采购组织 ls_component_i-matl_group = *. " 物料组 ls_component_i-item_cat = *. " 项目类别 APPEND ls_component_i TO lt_component_i. CLEAR ls_component_i. ls_component_up-item_number = 'X'. ls_component_up-item_text1 = 'X'. ls_component_up-plant = 'X'. ls_component_up-requirement_quantity = 'X'. ls_component_up-requirement_quantity_unit = 'X'. ls_component_up-pur_group = 'X'. ls_component_up-purch_org = 'X'. ls_component_up-matl_group = 'X'. ls_component_up-item_cat = 'X'. APPEND ls_component_up TO lt_component_up. CLEAR ls_component_up. ENDLOOP. * 创建维修工单 CALL FUNCTION 'BAPI_ALM_ORDER_MAINTAIN' TABLES it_methods = lt_methods it_header = lt_header_i it_header_up = lt_header_up it_operation = lt_operation_i it_operation_up = lt_operation_up it_component = lt_component_i it_component_up = lt_component_up return = lt_return_o et_numbers = lt_numbers it_servicelines = lt_servicelines it_servicelines_up = lt_servicelines_up. READ TABLE lt_return_o TRANSPORTING NO FIELDS WITH KEY type = 'E'. IF sy-subrc = 0. CALL FUNCTION 'BAPI_TRANSACTION_ROLLBACK'.ELSE. CALL FUNCTION 'BAPI_TRANSACTION_COMMIT' EXPORTING wait = 'X'.ENDIF.