Glossary
Amazon Seller Glossary
Clear definitions of the Amazon advertising and seller terms that matter — each with how AIAdKing handles it in practice.
Last updated: June 2026
ACoS Advertising Cost of Sales
ACoS (Advertising Cost of Sales) = ad spend ÷ ad revenue × 100. It measures how much you spend on Amazon ads to make one rupee (or dollar) o...
Read definitionTACoS Total Advertising Cost of Sales
TACoS (Total Advertising Cost of Sales) = ad spend ÷ total revenue × 100. Unlike ACoS, it measures ad spend against all sales — organic incl...
Read definitionRoAS Return on Ad Spend
RoAS (Return on Ad Spend) = ad revenue ÷ ad spend. It is the inverse of ACoS: a 4× RoAS is the same as a 25% ACoS. RoAS expresses ad efficie...
Read definitionBuy Box Featured Offer
The Amazon Buy Box (now “Featured Offer”) is the “Add to Cart” box that wins the default sale on a product page. When several sellers offer...
Read definitionDayparting Ad scheduling by hour of day
Dayparting on Amazon means adjusting ad bids or budgets by hour of day and day of week, so you bid more when shoppers convert and less when...
Read definitionNegative keywords Search terms you block from your ads
Amazon negative keywords are search terms you block so your ads stop showing for them. Adding a search term that gets clicks but no sales as...
Read definitionSP-API Amazon Selling Partner API
The SP-API (Selling Partner API) is Amazon’s official developer API for seller data and actions — orders, listings, inventory, finance and m...
Read definitionSponsored Products Amazon’s keyword/ASIN-targeted ads
Sponsored Products are Amazon’s most common pay-per-click ads, promoting individual listings in search results and on product pages. They ta...
Read definitionSponsored Brands Amazon’s logo + product banner ads
Sponsored Brands are Amazon pay-per-click ads that show your brand logo, a headline and several products, usually across the top of search r...
Read definitionSponsored Display Amazon’s retargeting / display ads
Sponsored Display ads retarget shoppers who viewed your products (or similar ones) both on Amazon and across other websites and apps. They t...
Read definitionPPC Pay-per-click advertising
PPC (pay-per-click) means you pay only when a shopper clicks your ad, not when it is shown. On Amazon, PPC covers Sponsored Products, Sponso...
Read definitionAmazon DSP Demand-Side Platform
Amazon DSP (Demand-Side Platform) is Amazon’s programmatic ad system for buying display and video ads — both on Amazon and across the wider...
Read definitionCampaign The top level of an Amazon ad structure
An Amazon ad campaign is the top container for your ads: it holds a daily budget, a targeting type (automatic or manual) and one or more ad...
Read definitionAd group A set of products + targets inside a campaign
An ad group sits inside an Amazon campaign and holds a set of products together with the keywords or product targets and bids that apply to...
Read definitionBid The most you’ll pay per click
An Amazon bid is the maximum you’re willing to pay for a single click on a keyword or product target. Higher bids win more and higher ad pla...
Read definitionCPC Cost Per Click
CPC (Cost Per Click) is what you actually paid for a click — usually less than your bid, since Amazon charges just enough to win the auction...
Read definitionCTR Click-Through Rate
CTR (Click-Through Rate) = clicks ÷ impressions × 100. It shows how often shoppers who see your ad actually click it. A low CTR usually mean...
Read definitionImpressions How many times your ad was shown
Impressions are the number of times your ad was displayed to shoppers, whether or not anyone clicked. High impressions with few clicks means...
Read definitionConversion rate The share of clicks that become sales
Conversion rate on Amazon is the share of ad clicks that turn into orders (orders ÷ clicks × 100). It’s the single biggest driver of ACoS: a...
Read definitionSearch term The actual words a shopper typed
A search term is the actual phrase a shopper typed into Amazon, as opposed to the keyword you targeted. The Search Term Report shows which r...
Read definitionKeyword match types Broad, Phrase, and Exact match
Amazon keyword match types (Broad, Phrase, Exact) control how closely a shopper's search must match your keyword before your ad is eligible...
Read definitionPlacements Where on Amazon your ad appears
Placements are the positions where your Amazon ad can appear: top of search (the first row of results), rest of search, and product detail p...
Read definitionACoS vs TACoS Ad efficiency vs total ad efficiency
ACoS measures ad spend against ad-attributed sales only; TACoS measures the same spend against your total sales, organic included. ACoS show...
Read definitionFBA Fulfilment by Amazon
FBA (Fulfilment by Amazon) means you send stock to Amazon’s warehouses and Amazon stores, packs, ships and handles returns and customer serv...
Read definitionFBM Fulfilment by Merchant
FBM (Fulfilment by Merchant) means you store, pack and ship orders yourself instead of using Amazon’s warehouses. You avoid FBA storage and...
Read definitionSKU Stock Keeping Unit
A SKU (Stock Keeping Unit) is your own internal code for one specific product variant you sell — a given size, colour or pack. You assign SK...
Read definitionASIN Amazon Standard Identification Number
An ASIN (Amazon Standard Identification Number) is Amazon’s unique 10-character code for a product. Every listing has one, and several selle...
Read definitionListing Your product’s page on Amazon
An Amazon listing is your product’s detail page: title, images, bullet points, description, backend keywords and (for brands) A+ content. Li...
Read definitionOrganic rank Where you appear in unpaid results
Organic rank is where your product appears in Amazon’s unpaid search results for a keyword. It’s driven by relevance (keywords in your listi...
Read definitionA+ Content Enhanced brand content on a listing
A+ Content is the enhanced section on a product page — rich images, comparison tables and formatted text — available to brand-registered sel...
Read definitionBrand Registry Amazon’s programme for trademarked brands
Amazon Brand Registry is a programme for sellers with a registered trademark. Enrolling unlocks brand-protection tools plus Sponsored Brands...
Read definitionRepricing Adjusting price to stay competitive
Repricing means adjusting your product price — often automatically — to stay competitive and win the Buy Box on products other sellers also...
Read definitionStop reading about ACoS. Lower it automatically.
AIAdKing runs your Amazon PPC every night — bids, negatives, dayparting — previewable in shadow mode.
Start free for 14 days₹2,949/month (or ₹33,039/year) after trial. Cancel anytime.