GLOSSARY
Marketplace terms, explained simply
Plain-English definitions of the concepts behind selling on Amazon, eBay and Shopify.
A–Z
Definitions
Buy Box (Featured Offer)
The highlighted offer on an Amazon product page that wins most sales.
AEO (Answer Engine Optimisation)
Optimising content so AI answer engines can read and cite it.
GTIN vs MPN
Two product identifiers: a global trade number vs a manufacturer part number.
eBay Best Match
eBay’s default search ranking that decides which listings show first.
Repricing
Automatically adjusting prices to stay competitive — ideally within a margin floor.
Listing quality
How complete and optimised a product listing is across content and data.
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