[问题解决]使用mpur_message_forced时，校验消息添加到错误的采购订单行项目上详解编程语言

DATA:lt_po_item TYPE purchase_order_items, 
     ls_po_item LIKE LINE OF lt_po_item, 
     ls_item    TYPE mepoitem. 
 
lt_po_item = im_header->get_items( ). 
 
LOOP AT lt_po_item INTO ls_po_item. 
  ls_item = ls_po_item-item->get_data( ). 
* .... 
  IF ls_item-lifnr IS INITIAL. 
    mmpur_business_obj_id ls_item-id. "确定错误消息显示到哪个行项目上 
    mmpur_message_forced  'E' 'ZMM001' '003' lv_message '' '' ''. "收集错误消息 
    CALL METHOD ls_po_item-item->invalidate( ). "将发生错误的行设置为无效行 
    ch_failed = 'X'. 
  ENDIF. 
 
ENDLOOP.