When verifying a combined shipment of vehicles and parts, first ask who issues the per-vehicle VIN and parts case numbers, then confirm that quantities, weights and packaging methods and customs declaration descriptions and consignee of record cover the full order. Lay out the packing list by VIN, case number, part number, quantity and weight, and keep the vehicle documents clearly separate from the parts customs entries. Note the per-vehicle VIN and parts case numbers in the order file with the supporting basis for quantities, weights and packaging methods; pause the next step if customs declaration descriptions and consignee of record change.
For authorization and document checks, see How can dealers prepare customs documents for multiple vehicles in one order?. The auto parts packing list is ultimately governed by the local rules and written confirmations in force at the time of processing.

