Using Apps10. We are using a PO to receive returns from customers because we need to have the parts be customer owned. If we use an RMA the ownership changes to Company Owned. We would like to reserve the serial number to the PO line when the PO is created. When we try to do that we get the message that the serial number is already used by this part. However, when we do a Receive with Serial Numbers we are allowed to enter an existing serial number. It seems that if we can receive an existing SN we should be able to reserve an existing SN. Does anyone know if there is a way to reserve existing serial numbers to a PO?