对于特殊库存标识E和Q，以及分配到一个科目的采购订单，要确保数量在不被过帐到接收工厂的”在运库存”上。
For special stock indicators E and Q and for purchase orders assigned to an account, ensure that the quantity is not posted to the stock in transit in the receiving plant.
对于有采购订单的收货，在收到供应商退回的包装，及特殊库存标识为M供应商可退回包装，可以使用移动类型501。
For a goods receipt for purchase order 101, the receipt of returnable transport packaging can be entered using movement type 501 and special stock indicator m.
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