Every term a Whatnot seller actually runs into, defined in plain English — no circular definitions, no "a shipping profile is a profile for shipping." If you've ever nodded along to incremental weight or Smart Bundling while quietly having no idea, this is for you. 32 terms across 5 categories.
Listing & inventory
BIN shop
A BIN shop (Buy It Now shop) is a Whatnot seller's always-on storefront of fixed-price listings that buyers can purchase outside of a live show. It's where inventory lives between shows.
Batch
A batch is a group of Whatnot listings you prepare together — usually one sourcing haul, one show, or one drop of your BIN shop. Working in batches is what lets you list, number, and export a whole haul as a unit instead of item by item.
Bulk upload
Bulk upload is creating many Whatnot listings at once by uploading a CSV file rather than filling in a form per item. It's the only practical way to list a large haul, and it's done on Whatnot's website rather than in the app.
See: How to bulk upload listings to Whatnot →CSV template
The Whatnot CSV template is the spreadsheet format Whatnot requires for bulk listing imports. Each row is one listing and each column is a field — category, sub-category, condition, price, shipping profile, image URLs. Values in the constrained columns must match Whatnot's exact allowed strings or the row fails.
See: How to bulk upload listings to Whatnot →Draft listing
A draft listing is a Whatnot listing that has been created but not yet attached to a live show or published to a BIN shop. Bulk CSV uploads can be imported as drafts, which lets you stage a whole haul before deciding which show it belongs to.
Item number
An item number is the short label (1A, 2A, 3A…) a seller assigns to each item so buyers and the host can refer to it unambiguously during a live show. Numbering inventory before you go live is what keeps a fast show from turning into chaos.
Listing template
A listing template is a saved set of default field values for a repeat item type — category, sub-category, condition, and shipping profile — so those fields fill themselves in on every new item of that type. Templates are what turn a twenty-field listing into a three-field one.
Shipping
Buyer Pays Max
Buyer Pays Max is a Whatnot setting that caps how much of the shipping cost a buyer is charged, with the seller absorbing anything above the cap. Because USPS rates changed on July 31, 2026, caps set against the old rates are worth re-checking.
Custom shipping profile
A custom shipping profile is a reusable shipping configuration a seller creates in Seller Hub for a specific item type: a name, exact packed weight, optional dimensions, a max bundle size, and an incremental weight. Custom profiles are not available in Germany, the UK, or the Netherlands.
See: Whatnot custom shipping profiles →Flat Rate
USPS Flat Rate is a shipping option where the box itself sets the price regardless of weight, so postage can only be applied to official USPS Flat Rate packaging. On Whatnot it was temporarily priced at $12.99 per package through November 1, 2026. Contrary to earlier guidance, Flat Rate was not retired — it remains available.
See: Whatnot's USPS shipping changes →Incremental weight
Incremental weight is the weight each additional bundled item adds under a Whatnot custom shipping profile, as opposed to the full packed weight of the first item. It exists because the box, padding, and tape are only paid for once — so setting it correctly stops buyers being overcharged on multi-item bundles.
See: Whatnot custom shipping profiles →Label adjustment
A label adjustment is a change to a shipment's weight, dimensions, service, or bundling after a sale. Every Whatnot seller gets 5 free adjustments per week — free meaning Whatnot covers the extra cost the change creates. In the US the allowance resets Sunday at 7:00pm ET.
See: Whatnot Shipping 101 →Max bundle size
Max bundle size is the setting on a Whatnot custom shipping profile that caps how many items can ship together in one package. Setting it to 1 guarantees a fragile item ships alone and is never combined with another win by Smart Bundling.
See: Whatnot custom shipping profiles →Packed weight
Packed weight is the total weight of an item as it will actually ship — the object, the box or mailer, and every scrap of padding and tape. It is the number a shipping profile is built on, and the single most common thing new sellers get wrong.
Prepaid label
A prepaid shipping label is the postage Whatnot generates for a sold item, paid for through the platform rather than at the post office. Labels are generated from a desktop browser and require printer access.
Shipping profile
A shipping profile on Whatnot is the packed weight of an item — the item itself plus the box or mailer plus all padding and tape. The profile you choose determines what the buyer pays for shipping and how the item ships. In some countries it includes package dimensions as well.
See: Whatnot Shipping 101 →Smart Bundling
Smart Bundling is Whatnot's feature that automatically combines multiple wins from the same buyer into a single shipment to reduce postage. It optimizes for cost and respects the max bundle size on your shipping profile, which is the only way to tell it an item must not be combined.
USPS Ground Advantage
USPS Ground Advantage is the United States Postal Service's economy ground shipping class, and since July 31, 2026 it is the default USPS service on Whatnot. It must ship in plain, unbranded packaging — using Priority Mail or Flat Rate boxes with a Ground Advantage label can trigger a returned package and a USPS fee of roughly $20.
See: Whatnot's USPS shipping changes →Whatnot Manifest
The Whatnot Manifest is a feature that lets a seller confirm carrier drop-off for a whole batch of packages at once by scanning a single QR code, instead of scanning each package individually. Unlike the older USPS SCAN Form, labels do not have to be generated the same day the manifest is created.
See: Whatnot Shipping 101 →Selling & money
Early Payout
Early Payout is a Whatnot status that releases a seller's earnings before the carrier confirms delivery. Until a seller qualifies for it, earnings typically begin processing only after delivery is confirmed — which is why shipping fast moves your money faster.
Payout
A payout on Whatnot is the transfer of available balance from a seller's Whatnot account to their bank. Funds become available after earnings finish processing, and the seller initiates the transfer.
Seller Hub
Seller Hub is Whatnot's web dashboard where sellers manage shipments, shipping profiles, listings, payouts, and show scheduling. Several actions — editing a shipment, creating custom shipping profiles, generating labels — are only available there and not in the mobile app.
Seller fees
Seller fees on Whatnot are the platform's commission plus payment processing, deducted from each sale. Commission is category-dependent, so a seller's real net differs by what they sell — which is why tracking net rather than gross matters.
Shows & discovery
Feed ranking
Feed ranking is how Whatnot decides which shows to surface to which viewers. Engagement signals — viewers watching, bidding, and buying — carry weight, which is why the opening minutes of a show disproportionately shape its reach.
See: How Whatnot's feed ranks you →Haul
A haul is a batch of inventory a reseller has just sourced — from an estate sale, thrift run, auction, or storage unit — and needs to photograph, research, price, and list. "Listing a haul" is the recurring job that defines the reselling workflow.
Live show
A Whatnot live show is a scheduled livestream where a seller auctions or sells items in real time to a live audience. It is Whatnot's primary selling format, and most sellers prepare inventory in advance rather than listing during the stream.
Private show
A private show is a Whatnot livestream not surfaced publicly, used to test setup, shipping configuration, or new formats without an audience. It's the safe place to verify a shipping change before doing it live.
Vintage & research
Backstamp
A backstamp is the maker's mark printed, stamped, or impressed on the underside of ceramics, glassware, and pottery. It is the single most reliable identifier on a vintage piece, and photographing it is the highest-value thing a reseller can do for identification.
See: Snap-Search →Comps
Comps (comparables) are recent sold prices for the same or a closely similar item, used to decide what to charge. Sold prices, not asking prices — an unsold listing at $80 is evidence of nothing.
Ephemera
Ephemera is printed material originally made to be discarded — postcards, tickets, trade cards, letters, advertisements, packaging. It is a major reselling category on Whatnot precisely because it is light, cheap to ship, and highly collectible.
Reverse image search
Reverse image search is finding visually similar images across the open web from a single uploaded photo. For vintage identification it has three structural limits: one photo per search, results drawn from unvetted sources, and misidentifications that propagate permanently once other listings copy them.
See: Snap-Search →Snap-Search
Snap-Search is a feature of the Shelf-Snap iPhone app that identifies a vintage or collectible item from a photo and drafts a listing title and description. It runs on credits at one credit per search, and every Shelf-Snap account including the free plan gets 5 credits a month.
See: Snap-Search →Knowing the words is step one. Listing the haul is step two.
Shelf-Snap turns a shelf of unsorted inventory into a Whatnot-ready CSV from your phone — templates, shipping profiles, auto-numbering, and 5 Snap-Search credits a month on every plan. Free on iPhone.
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