Field note
Why ask for the packed weight on every invoice line?
Because shipping follows the packed parcel, not the product page. A weight beside each line lets you see why a price moved, and it lets you set your selling price with the real figure.
A seller asked us for exactly that on Friday 6 November: a weight column on the invoice, to control the weight for better price calculation. We agreed to add the packed weight. If you want the same, ask us.
What changes in peak season?
Carriers measure harder. That Friday, a seller challenged a shipping price that looked high next to a similar product, and asked us to weigh the goods on arrival and recheck. Our answer was that logistics companies have become stricter about dimensions in peak season, and they can charge on volume.
That matters most for bulky goods sold in sets. Books are the clearest case: they fit a weight-based rate until a carrier applies volumetric weight, and then a large set may have to split into separate packages. Ask how many pieces fit one parcel, and what happens at the next piece.
Check that before you promote a bigger bundle, because a split parcel changes the shipping and the customer's delivery. When one order becomes two parcels shows what forces a split.
Why does one extra piece cost more than the next?
Because freight and handling move differently. Our logistics cost is the sum of the two: freight rises with weight, while handling fees can be higher for some weight ranges and lower for others. Earlier that week, a seller asked for the freight and handling split on each line, to see which weight bracket moved the price. The check found wrong factory data, and we sent a corrected quote. That split is the right thing to ask for.
Ask for the packed weight of each new batch as well, not only the first.
Run this check before you reprice
Pick your top three products and ask us for the packed weight and box size of each, then compare them with the weights in your pricing sheet. A gap of a few hundred grams can move a parcel into a new band. How to read a landed-price quote shows which labels to check on the next quote.