Glossary: plain words for Pop Street Commerce terms

Short, plain explanations of the words you will meet, from FBA and SKU to sample mode and one-tap Connect.

Updated Oct 25, 2026

Words you will see in Pop Street Commerce and in marketplace seller accounts.

Selling words

Marketplace. A big website where many sellers list products, such as Amazon or eBay. Also called a channel.
Channel. Any place you sell: your own shop, your register or a marketplace.
Listing. One product as it appears on one channel.
Product and variant. A product is the item. Its variants are the choices, such as sizes and colours.
SKU. Stock keeping unit. Your own short code for one exact product, such as one size and colour. It is how Pop Street Commerce and a marketplace know they mean the same item.
GTIN. Global trade item number. The number under a barcode, called UPC or EAN in some places. Use the real one printed on the package. Never invent one.
Brand and MPN. The maker's name and the maker's own part number. Some marketplaces accept these when a product has no GTIN.
Shelf. A group of products, such as a department.
Listing health. A score that shows whether a product has what marketplaces expect, such as a photo, a price and a description.

Stock location. A place your stock sits, such as your own storage.
FBA. Fulfilment by Amazon. Amazon keeps your stock in its warehouses, then packs and ships the orders.
WFS. Walmart Fulfillment Services. The same idea at Walmart.
Multi-channel fulfilment. Using stock held at Amazon to fill orders from your other channels.
Transfer. Moving units from one location to another.
Tracking number. The code a carrier gives a parcel so anyone can follow it.

Connect, or one-tap Connect. You press Connect, sign in on the marketplace's own page and approve access.
OAuth. The name for that sign-in-and-approve step. You never hand your password to Pop Street Commerce.
Key. A pair of long codes from your seller account, such as a client ID and a secret, that you paste once.
API. A way for two programs to talk, so Pop Street Commerce can read orders and send stock counts.
Feed. A private web address that lists your products. A marketplace reads it on a schedule.
Upload file. A spreadsheet in the marketplace's own layout, which you upload in its seller tools.
Sample mode. The screens work with made-up orders and nothing is sent to the marketplace.
Dry run. A rehearsal that shows exactly what would be sent, without sending it.