SAP采购订单表EKKO和EKPO中基本上无法准确地查询到创建时间、账号和事务代码，查询CDHDR和CDPOS中更改标识为I的记录就是创建。
One way is to look directly at the change log tables using SE16.
The table is CDHDR and you need to enter the following:
OBJECTCLAS = EINKBELEG
OBJECTID = PO Number
The earliest record will show the transaction code used to generate the PO.
Actually, if you also enter CHANGE_IND = “I” you will only see the record for creating the PO and not any changes.
