Start with the selling unit
One piece can mean a loose brick, a retail set or a display pack in different source catalogs. Your quotation should name the unit explicitly. Confirm units per inner pack, inner packs per master carton and total retail sets per carton before calculating the order.
Use carton data, not single-parcel data
Marketplace pages may show a single-package dimension that differs from the export master carton. Ask for confirmed master-carton length, width and height, gross weight, net weight and units per carton. Carton volume in cubic meters is length x width x height in centimeters divided by 1,000,000.
Consider an order as a packing list
A mixed assortment needs a line-by-line quantity, carton count and readiness date. Discuss whether the selected items can be coordinated into the same shipment. Loading quantity depends on actual carton dimensions, weight, pallet use, loading restrictions and the booking; do not treat theoretical container volume as a guaranteed capacity.
Agree responsibility and delivery milestones
Ask the quote to state its delivery basis and named place or port. Separate sample approval, production readiness, inspection, handover and transport time. Shipping cost and import charges should be confirmed for the destination and shipment rather than copied from a past order.
Keep reorder records useful
Retain the final packing list, product specification and approved package images. For a repeat purchase, confirm whether the carton, materials or accessories have changed. This makes it easier to compare current and previous orders without assuming that the same item number guarantees identical packing.