I am requesting information about the best practice for handling a receiving scenario in NetSuite.

We use a handheld to receive inventory off purchase orders. When receiving with the handheld, there is no way to see the cost of the item that is received; it is simply received at the amount on the purchase order. We have found situations where the purchase order has an incorrect cost that is not discovered until we receive the bill. At that time, the receipt is already done at the wrong value and the items might have already moved through the system. We use NetSuite's vendor bill variance to catch small differences, but we need to know the best