We are currently importing our EDI demand from our VAN and creating customer schedules.  We are currently experiencing an issue when creating customer schedules where the part number, delivery address id and the customer are the same but the purchase order numbers are different.  The files coming from the VAN are at two different times.  The customer schedule is being superceded and overwriting the first schedule that has a different purchase order.  We currently have the agreement part setup to use PO information.  

Does anyone know of a way to have IFS look at the purchase order numbers and treat the customer schedule as different from the others?