To assign a priority to a booking which would increase the possibility that this cargo would be booked on said voyage and not be shut out
Number indicating importance
Code indicating level of priority: 1-highest, 0-implies priority not assigned
P0203: If either Y7-02 or Y7-03 is present, then the other is required
Number indicating the number of levels of priority (1 to 9) used for data element 470, Priority Code
Reference number assigned by a shipper
Y705 is the date specified by the shipper indicating when the shipment is required at the consignee's location.