Package and weight

Where weight and dimensions live

Weight and box dimensions belong to the product, not to any one listing — the same package ships however many channels you sell it on. You’ll find these fields on the product’s Product Info tab (alongside cost).

• Weight is entered as pounds and ounces, whichever is easier for what’s in front of you — a fraction of an ounce is fine, since a postal scale reads tenths.
• Dimensions are length, width, and height in inches.

When a weight is required

A weight is the single most common reason a listing can’t go out. Whether one is needed depends on the channel and on your shipping terms:

• Mercari always needs one. It picks the shipping service from the weight, so it can’t create a listing without it.
• eBay needs one when your shipping terms are calculated (“Calculated by eBay from the package”), for domestic or international shipping. eBay works out the buyer’s postage from the package, and a missing or zero weight reads as “this weighs nothing”. With flat-rate shipping terms, eBay doesn’t need a weight.

A zero counts as no weight. A package template in your recipe can fill in a weight for products that don’t have one. See Set up for your first listing.

Dimensions are all-or-nothing

Dimensions are all three or none. If you enter one, enter all three; ListSwiftly doesn’t send a partial box size.

ListSwiftly won’t overwrite a weight you’ve already measured

If a listing template includes a package profile (a weight and dimensions associated with a recipe), applying that recipe will not overwrite a weight you’ve already typed in for a product — a measured weight is yours, and silently replacing it would change what a live listing charges a buyer for postage. Overwriting it is something you do on purpose, not something that happens as a side effect of applying a recipe.