How shipping profiles work
A shipping profile bundles weight, dimensions, service level and who pays into a reusable setting. Assign it at intake and every marketplace quotes shipping correctly, which removes the most common source of margin leakage in online resale.
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Why shipping is where margin quietly disappears
Underestimate shipping on a $28 item by $6 and you have given away most of the profit. Do it across a few hundred items a month and it is the difference between a business and a hobby. What makes it insidious is that it never shows up as a single bad decision — it shows up as a margin that is mysteriously worse than the spreadsheet said.
Profiles fix this by making the shipping decision once per category rather than once per listing.
What a profile contains
- Weight and dimensions, either fixed or as a default the item can override.
- Service level — economy, standard, expedited.
- Who pays: free shipping with the cost priced in, buyer-paid flat rate, or calculated at checkout.
- Handling time, which several marketplaces surface to buyers and use in ranking.
- Packaging assumptions, so the person packing knows what the quote assumed.
A typical set of profiles
| Profile | Covers | Approach |
|---|---|---|
| Small light | Jewellery, accessories, small apparel | Flat rate, free shipping priced in |
| Standard apparel | Most clothing | Flat rate or calculated depending on distance sensitivity |
| Heavy or bulky | Boots, coats, homeware | Calculated — flat rates lose money on distance |
| Oversize | Furniture, large decor | Local pickup or freight, never standard parcel |
| Fragile | Ceramics, glass, vinyl | Standard service with packaging noted, extra handling time |
Flat rate versus calculated
Flat rate is simpler and converts better, because the buyer sees one number. It works when your cost does not vary much with distance — light items within one country.
Calculated protects you when weight or distance genuinely moves the cost. For anything heavy, or for cross-border selling, calculated is usually the honest choice; a flat rate that works for a nearby buyer will lose money on the far one.
Weights and dimensions have to be real
Profiles are only as good as the numbers in them. Weigh a representative sample of each category once, with the packaging you actually use, and set the profile from that rather than from an estimate. Carrier dimensional-weight rules mean a light but bulky parcel can cost far more than its weight suggests.
Frequently asked questions
Can a profile differ per marketplace?
Yes, and it often should. Marketplaces have different buyer expectations about free shipping and different rules about what you can charge, so the same item can reasonably ship differently depending on where it sells.
What if an item does not fit any profile?
Override the weight and dimensions on the item. Profiles are defaults, not constraints — the point is that the exception is rare enough to be worth handling individually.
Should I offer international shipping?
It expands your buyer pool meaningfully for niche and collectible inventory, and it adds customs paperwork, longer transit and more disputes. Start with the categories where the item is scarce enough that buyers will wait.
How often should I revisit my profiles?
At least annually, and whenever a carrier raises rates. A profile set two years ago is almost certainly under-charging today.
Step-by-step product docs
This guide explains how it works. These show you exactly where to click.
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