ME_PROCESS_PO_CUST增强checkMETHOD if_ex_me_process_po_cust~check. DATA:redata TYPE mepoheader. DATA:lt_zmm_oa TYPE STANDARD TABLE OF zmm_oa_001. DATA:ls_zmm_oa TYPE zmm_oa_001."记录采购的数据ZSRM06 DATA:lt_items TYPE purchase_order_items. DATA:ls_items TYPE purchase_order_item. DATA:item_