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215 terms, in plain English

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Showing all 215 terms

A

27 terms

A/B Testing

Comparing two versions of a listing element or ad, such as a main image or title, to see which drives a better click-through rate, conversion rate or sales. Brand owners can run them with Manage Your Experiments.

Search & listings

Account Health Rating

AHR

A Seller Central score that shows how well your account follows Amazon's selling policies. A low rating can put the account at risk of suspension.

Selling basics

A+ Content

A Brand Registry feature that adds rich images, comparison charts and text modules to the product description. It replaced the older name Enhanced Brand Content (EBC).

Brand Registry & analyticsA+ Content service

Ad Group

A set of ads inside a campaign that share the same targets and bids. Grouping by product or theme keeps bids and search terms easy to read.

Advertising

Ad Impressions

The number of times your sponsored ad was shown to shoppers. Impressions measure reach, not engagement.

Metrics & formulas

Ad Orders

Orders credited to an ad click within the attribution window. Used to work out ad sales, conversion rate and cost per order.

Metrics & formulas

Ad Sales

Sales credited to your ads within the attribution window. The basis for ACoS and ROAS.

Metrics & formulas

Ad Spend

The total you paid for ad clicks and impressions over a period. Shown as Spend in the Amazon Ads console.

Metrics & formulas

Ad Status

The current state of an ad or campaign: delivering, paused, out of budget, under review or not delivering because of an issue.

Advertising

Ad Targeting

Choosing who sees your ads: by keyword, by product or category, or by audience. Each ad type supports different options.

Advertising

Advance Shipment Notification

ASN

A document a vendor sends Amazon before an inbound shipment arrives, listing contents, quantities and packaging.

Vendor Central

Amazon A10

An unofficial name sellers use for Amazon's search ranking algorithm. Amazon does not publish the name or the weights, but sales, conversion rate, relevance and reviews clearly matter.

Search & listings

Amazon Ads

Amazon's advertising business and platform. Sellers and vendors run Sponsored Products, Sponsored Brands and Sponsored Display campaigns in the Amazon Ads console.

AdvertisingPPC management

Amazon Advantage

A consignment program for publishers, authors and media creators to sell books, music and films directly to Amazon.

Selling basics

Amazon Aggregator

A company that buys and scales Amazon brands, using capital and operating know-how to grow revenue across a portfolio.

Finance & planning

Amazon Global Selling

Amazon's program for listing and selling in other countries' marketplaces from one seller account.

Selling basicsInternational PPC

Amazon Marketing Stream

An Amazon Ads data feed that sends hourly campaign metrics to your own systems through the API, so bids can react within the day.

Advertising

Amazon Retail Analytics

ARA

The older Vendor Central reporting suite, in Basic and Premium versions. Largely replaced by Brand Analytics and Search Query Performance.

Vendor Central

Amazon's Choice

A badge Amazon shows on a product it recommends for a specific search, based on factors such as ratings, price, delivery speed and how often shoppers buy it.

Search & listings

Amazon Standard Identification Number

ASIN

The unique 10-character code Amazon gives every product in its catalog. Ads, reports and listings all key off the ASIN.

Selling basics

Amazon Vendor Services

AVS

A paid Vendor Central service that gives a vendor a dedicated Amazon account manager and strategic support.

Vendor Central

Amazon Warehousing and Distribution

AWD

Amazon's bulk storage service that holds inventory and refills FBA stock automatically.

Fulfillment & inventory

Annual Vendor Negotiation

AVN

The yearly negotiation between Amazon and a vendor covering cost prices, co-op funding, allowances and terms.

Vendor Central

Attribution Window

The time after an ad click in which a purchase is credited to that ad. Sponsored Products uses 7 days for sellers and 14 days for vendors; Sponsored Brands and Sponsored Display use 14 days.

Advertising

Automatic Targeting

A Sponsored Products campaign type where Amazon chooses the searches and products to show your ad on, based on your listing. Useful for finding new search terms.

Average Selling Price

ASP

The average revenue per unit sold over a period.

ASP = Revenue ÷ Units sold
Finance & planning

B

18 terms

B2B

Business-to-business sales on Amazon, made to Amazon Business buyers, often with quantity discounts and business pricing.

Selling basics

B2C

Business-to-consumer sales to individual shoppers. The default Amazon marketplace model.

Selling basics

Backend Keywords

Search terms added in the listing's back end that help a product get indexed for searches but are not shown to shoppers. Amazon limits them to 250 bytes in the US.

Search & listingsListing optimization

Best Deal

A limited-time promotion featured on Amazon's deals pages that runs longer than a Lightning Deal.

Selling basics

Best Sellers Rank

BSR

A product's rank by recent sales within a category, updated hourly. A lower number means more sales.

Search & listings

Bid

The most you are willing to pay for a click on a keyword or product target. You often pay less than your bid.

Advertising

Bill of Lading

BOL

A shipping document issued by a carrier that lists the goods, quantities and destination of a freight shipment.

Fulfillment & inventory

Brand Analytics

BA

A free set of Seller Central reports for brand owners in Brand Registry, including Search Query Performance, Top Search Terms and Repeat Purchase Behavior.

Brand Registry & analyticsSQP consulting

Brand Registry

A free Amazon program for brand owners with a registered or pending trademark. It protects the brand and unlocks A+ Content, Brand Analytics, Sponsored Brands, Brand Stores and Project Zero.

Brand Registry & analytics

Brand Store

A free multi-page brand storefront on Amazon for Brand Registry sellers, with its own URL and no competitor ads.

Brand Registry & analyticsBrand Store design

Break-even ACoS

The ACoS at which an ad sale makes no profit and no loss. It equals your margin before ad costs.

Break-even ACoS = (Price − All costs before ads) ÷ Price × 100
Metrics & formulasFree calculator

Broad Match

A keyword match type that can show your ad for searches containing the keyword's words in any order, plus close variations and related searches. Good for discovery, costly without negatives.

Advertising

Browse Node

A numbered category in Amazon's catalog tree. Browse nodes power category navigation and filters, and decide where a product's Best Sellers Rank is counted.

Search & listings

Budget

The average amount a campaign can spend per day. When it runs out, the campaign's ads stop showing until the next day.

Advertising

Bullet Points

The short feature lines under a product title. They carry keywords for search and the main reasons to buy.

Search & listings

Bundle

One listing that sells several items together at one price, used to raise order value.

Selling basics

Buy Box

The Add to Cart and Buy Now panel on a product page. When several sellers offer the same product, the seller who wins the Buy Box gets most of the sales, and ads only show while you hold it.

Selling basics

Buy One Get One

BOGO

A promotion where buying one item gets a second one free or at a discount.

Selling basics

C

22 terms

Campaign

The top level of an Amazon Ads account: one ad type, a daily budget, a start and end date, and one or more ad groups.

Advertising

Can't Realize a Profit

CRaP

An Amazon label for products that lose money for Amazon after fees, shipping and price. CRaP products can be blocked from sale.

Vendor Central

Case Pack Quantity

The number of units packed in one shipping case, used for inbound shipment planning.

Fulfillment & inventory

Catalog API

The Selling Partner API endpoint for reading and updating catalog and listing data in bulk.

Fulfillment & inventory

Category Page

An Amazon page that groups products by category so shoppers can browse and filter.

Search & listings

Chargeback

A payment dispute where a buyer's bank or card issuer reverses a transaction.

Finance & planning

Child ASIN

One variation, such as a size or color, under a parent ASIN. Child ASINs share the listing's reviews.

Selling basics

Clicks

The number of times shoppers clicked your ad. Amazon removes invalid clicks before you are charged.

Metrics & formulas

Click-Through Rate

CTR

The share of ad impressions that turn into clicks. It shows how compelling your image, title and price look in the results.

CTR = Clicks ÷ Impressions × 100
Metrics & formulasFree calculator

Climate Pledge Friendly

A badge for products with recognized sustainability certifications.

Selling basics

Compound Annual Growth Rate

CAGR

The steady yearly growth rate that would take a number from its starting value to its ending value over several years.

Finance & planning

Concessions

Refunds, replacements or credits Amazon gives customers, often charged back to the vendor.

Vendor Central

Confirmation Rate

The share of purchase order units a vendor confirms.

Confirmation rate = Confirmed units ÷ Ordered units × 100
Vendor Central

Contribution Margin

Revenue minus variable costs: what is left to cover fixed costs and profit.

Contribution margin = Revenue − Variable costs
Finance & planning

Conversion Rate

CVR

The share of clicks or sessions that become orders. In Amazon Ads it is orders divided by clicks.

CVR = Orders ÷ Clicks × 100
Metrics & formulasFree calculator

Cooperative Marketing

Co-op

Marketing funds a vendor pays Amazon, often as a share of purchases, to support promotion of its products.

Vendor Central

Cost of Goods Sold

COGS

The direct cost of making or buying the products you sold, including materials and inbound freight.

Finance & planning

Cost Per Action

CPA

Ad spend divided by the number of orders (or another action). On Amazon it usually means ad cost per order.

CPA = Ad spend ÷ Orders
Metrics & formulasFree calculator

Cost Per Click

CPC

What you pay on average for each ad click, set by the auction and your bid.

CPC = Ad spend ÷ Clicks
Metrics & formulasFree calculator

Cost Per Mille

CPM

The cost of 1,000 ad impressions. Sponsored Display can be billed this way on viewable impressions.

CPM = Ad spend ÷ Impressions × 1,000
Metrics & formulasFree calculator

Coupon

A discount shoppers clip on the search results or product page, shown with a green badge. Coupons can lift click-through and conversion rates.

Selling basics

Critical Pull Time

CPT

The latest time a fulfillment center can pick and pack an order and still meet its delivery promise.

Fulfillment & inventory

D

10 terms

Damage Allowance

A vendor term where Amazon deducts a set percentage of invoices instead of returning damaged goods.

Vendor Central

Dayparting

Changing bids or budgets by hour or day of the week, so spend goes to the times when shoppers buy.

Advertising

Deal of the Day

A one-day discount featured on Amazon's Today's Deals page.

Selling basics

Delivered Duty Paid

DDP

A shipping term where the seller pays all costs, duties and taxes to deliver goods to the buyer's destination.

Fulfillment & inventory

Detail Page

The full product page: title, images, price, bullet points, description, A+ Content, reviews and the Buy Box.

Search & listings

Detail Page Views

DPV

How many times shoppers viewed a product page. Called Glance Views in Vendor Central.

Metrics & formulas

Direct Fulfillment

DF

A vendor model where the vendor ships orders straight to Amazon customers instead of to Amazon warehouses.

Vendor Central

Direct Import

DI

A vendor model where Amazon buys from an overseas manufacturer and imports the goods itself.

Vendor Central

Dropshipping

Selling products that a third-party supplier ships directly to the customer. Amazon allows it only when you are the seller of record.

Selling basics

Dynamic Bidding

A Sponsored Products setting where Amazon changes your bid in real time based on how likely a click is to convert: down only, up and down (up to 100% more for top of search, 50% elsewhere), or fixed.

Advertising

E

7 terms

Electronic Data Interchange

EDI

A standard for sending orders, invoices and shipping documents between trading partners automatically.

Vendor Central

Estimated Delivery Date

EDD

The delivery date Amazon promises shoppers at checkout. Missing it hurts seller metrics.

Fulfillment & inventory

European Article Number

EAN

A 13-digit barcode used to identify products outside North America.

Selling basics

European Fulfillment Network

EFN

An FBA option that stores inventory in one European country and fulfills orders from other EU marketplaces.

Fulfillment & inventory

Exact Match

A keyword match type that shows your ad only for that search and close variants such as plurals and misspellings. The tightest control over spend.

Advertising

Expected Ship Date

The date by which a seller must ship an order to meet the delivery promise.

Fulfillment & inventory

Ex Works

EXW

A shipping term where the buyer takes on all costs and risk from the seller's factory or warehouse.

Fulfillment & inventory

F

10 terms

Forward-Looking Order Workflow

FLOW

A Vendor Central program where Amazon shares forecast purchase orders ahead of time.

Vendor Central

Free Carrier

FCA

A shipping term where the seller delivers export-cleared goods to a carrier chosen by the buyer.

Fulfillment & inventory

Free on Board

FOB

A shipping term that sets the point where cost and risk pass from seller to buyer, usually when goods are loaded at the port.

Fulfillment & inventory

Freight PRO Number

A tracking number a freight carrier assigns to a less-than-truckload shipment.

Fulfillment & inventory

Frustration-Free Packaging

FFP

Amazon-certified packaging that is easy to open, uses less material and ships without an extra box.

Fulfillment & inventory

Fulfillment by Amazon

FBA

A service where Amazon stores your inventory and picks, packs, ships and handles returns and customer service for your orders. FBA offers usually show the Prime badge.

Fulfillment & inventory

Fulfillment by Merchant

FBM

Storing and shipping your own orders instead of using FBA.

Fulfillment & inventory

Fulfillment Center

FC

An Amazon warehouse that receives, stores, picks, packs and ships inventory.

Fulfillment & inventory

Fulfillment Network SKU

FNSKU

The barcode Amazon assigns to each FBA product per seller, so units can be traced to the right account.

Fulfillment & inventory

Full Truckload

FTL

A freight shipment that fills a whole truck.

Fulfillment & inventory

G

5 terms

Gated Category

A product category that needs Amazon's approval before you can list in it.

Selling basics

Glance Views

GV

The Vendor Central name for product page views.

Vendor Central

Global Data Synchronization Network

GDSN

A network for sharing standardized product data between trading partners.

Vendor Central

Global Trade Item Number

GTIN

The family of standard product identifiers, including UPC, EAN, JAN and ISBN.

Selling basics

Gross Merchandise Value

GMV

The total value of goods sold over a period, before fees, returns and costs.

Finance & planning

H

5 terms

H1 and H2

The first half (January to June) and second half (July to December) of the year. H2 holds Prime Day in most years, Black Friday and the holiday peak.

Finance & planning

Hazmat

Products classed as dangerous goods, such as flammable, corrosive or pressurized items. They need extra review before FBA will accept them.

Fulfillment & inventory

Headline Search Ads

The old name for Sponsored Brands ads.

Advertising

Heavy Bulky

Products large or heavy enough to need special FBA handling and fees.

Fulfillment & inventory

Hijacking

When another seller lists a counterfeit or unauthorized offer on your branded ASIN, or changes your listing content.

Brand Registry & analytics

I

5 terms

Impression Share

The share of the impressions available for a target or search that your ads won. Sponsored Products reports top-of-search impression share.

Metrics & formulas

Index Suppressed

A listing removed from search results because of a policy or data problem, such as a missing image or a title that breaks the rules.

Search & listings

Intellectual Property

IP

Trademarks, patents and copyrights. Brand Registry helps protect registered IP on Amazon.

Brand Registry & analytics

International Standard Book Number

ISBN

A 13-digit identifier for books.

Selling basics

Item Type Keyword

ITK

A listing attribute that tells Amazon exactly what the product is, which affects browse placement and search filters.

Search & listings

J

2 terms

Japanese Article Number

JAN

The Japanese version of the EAN barcode.

Selling basics

Joint Business Plan

JBP

The annual plan a vendor agrees with Amazon on growth targets, funding and promotions.

Vendor Central

K

6 terms

Key Performance Indicator

KPI

A number used to track performance. For Amazon ads the usual KPIs are ACoS, TACoS, ROAS, CTR, conversion rate and total sales.

Metrics & formulas

Keyword

A word or phrase shoppers type into Amazon search. Keywords drive both organic ranking and PPC targeting.

Search & listingsKeyword research

Keyword Bidding

Setting a separate bid for each keyword so you pay more for searches that sell and less for those that do not.

Advertising

Keyword Cannibalization

When several of your campaigns target the same search and compete with each other, raising your own cost per click.

Advertising

Keyword Harvesting

Moving search terms that convert from automatic and broad campaigns into exact match campaigns, and adding the ones that waste money as negatives.

Advertising

Keyword Research

Finding the searches shoppers use for your products, with their volume and how well they convert.

Search & listingsKeyword research

L

6 terms

Landed Cost

The full cost of a product delivered to the warehouse: product cost, freight, duties and fees.

Finance & planning

Less Than Container Load

LCL

An ocean freight option where several shippers share one container.

Fulfillment & inventory

Less Than Truckload

LTL

A freight option where several shippers share one truck.

Fulfillment & inventory

Lightning Deal

A short, limited-quantity deal featured on Today's Deals for a few hours.

Selling basics

Listing Optimization

Improving a product page, from title and images to bullet points and A+ Content, to rank higher and convert more of the traffic it gets.

Search & listingsListing optimization

Long-Tail Keywords

Longer, more specific searches with less volume and less competition. They often convert better and cost less per click.

Search & listings

M

10 terms

Manual Targeting

A Sponsored Products campaign type where you choose the keywords or products to target and set the bids.

Manufacturer's Suggested Retail Price

MSRP

The price a manufacturer recommends retailers charge.

Finance & planning

Marketplace Web Service

MWS

Amazon's old seller API, replaced by the Selling Partner API.

Fulfillment & inventory

Match Type

The setting that controls how closely a search must match your keyword for your ad to show: broad, phrase or exact.

Advertising

Merchant Fulfilled Network

MFN

Amazon's term for orders the seller ships, the same as FBM.

Fulfillment & inventory

Minimum Advertised Price

MAP

The lowest price a brand allows retailers to advertise a product at.

Finance & planning

Minimum Order Quantity

MOQ

The smallest order a supplier will accept.

Fulfillment & inventory

Month over Month

MoM

A comparison of a number with the same number last month.

Finance & planning

Month to Date

MTD

Results from the first day of the month to today.

Finance & planning

Multi-Channel Fulfillment

MCF

An FBA service that ships orders from your other sales channels using your FBA inventory.

Fulfillment & inventory

N

9 terms

Negative Keywords

Searches you tell Amazon not to show your ad for. The main tool for cutting spend on searches that never sell.

Advertising

Negative Product Targeting

Products or brands you exclude from your product-targeting campaigns so your ads stop showing on them.

Advertising

Net Profit

What is left from revenue after all costs, fees, ad spend and taxes.

Finance & planning

Net Sales

Revenue after discounts, returns and allowances.

Finance & planning

New Item Setup

NIS

The process of creating a new product listing in Vendor Central.

Vendor Central

New Product Launch

NPL

Bringing a new product to market on Amazon, usually with ads to build early sales, reviews and rank.

Selling basicsLaunch PPC

New-to-Brand

NTB

Orders from shoppers who have not bought from your brand in the past 12 months. Reported in Amazon Ads for brands in Brand Registry.

Metrics & formulas

Niche

A specific sub-category of products for a defined group of shoppers.

Selling basics

Non-Replenishable

NR

A Vendor Central status meaning Amazon will not reorder a product.

Vendor Central

O

6 terms

Order Defect Rate

ODR

The share of orders with negative feedback, an A-to-z Guarantee claim or a chargeback. Amazon expects it to stay under 1%.

Selling basics

Ordered Product Sales

OPS

The total value of products ordered in a period, from Seller Central Business Reports. It includes ad sales, so it is the total sales figure for TACoS.

Metrics & formulas

Ordered Revenue

In Vendor Central, the value of units customers ordered.

Vendor Central

Organic Sales

Sales that came without an ad click: total sales minus ad sales.

Metrics & formulas

Other SKU Sales

Sales of products other than the one advertised, made after a shopper clicked your ad, within the attribution window.

Metrics & formulas

Out of Stock

OOS

When a product has no available inventory. Ads stop and organic rank often drops while you are out of stock.

Fulfillment & inventory

P

17 terms

Pan-European FBA

An FBA program that spreads your inventory across European fulfillment centers so orders ship faster.

Fulfillment & inventory

Parent ASIN

A non-buyable listing that groups variations (child ASINs) such as sizes or colors.

Selling basics

Pay Per Click

PPC

An ad model where you pay each time a shopper clicks your ad. Sponsored Products, Sponsored Brands and most Sponsored Display ads work this way.

AdvertisingPPC management

Phrase Match

A keyword match type that shows your ad for searches containing your keyword phrase in the same order, with words before or after it.

Advertising

Placement

Where a Sponsored Products ad shows: top of search, rest of search or product pages. You can raise bids for top of search and product pages by up to 900%.

Advertising

Portfolio

A folder in the Amazon Ads console for grouping campaigns, often by brand or product line, with an optional budget cap.

Advertising

Premium A+ Content

A richer tier of A+ Content with larger images, interactive comparison charts and carousels.

Brand Registry & analyticsA+ Content service

Price Protection

A vendor agreement that credits Amazon when the vendor lowers a cost price on stock Amazon already holds.

Vendor Central

Prime

Amazon's paid membership with fast free delivery and member deals. FBA and Seller Fulfilled Prime offers carry the Prime badge.

Selling basics

Prime Day

Amazon's yearly deals event for Prime members, one of the biggest sales periods of the year.

Selling basicsPrime Day PPC

Private Label

PL

Products made by a manufacturer and sold under your own brand.

Selling basics

Product Targeting

Ad targeting that shows your ad on chosen products (ASINs) or categories instead of on searches.

Advertising

Professional Seller

The Amazon seller plan at $39.99 a month that unlocks advertising, Brand Registry tools and bulk listing.

Selling basics

Profit and Loss

P&L

A statement of revenue, costs and profit over a period.

Finance & planning

Profit Margin

Profit as a percentage of revenue. Margin before ad costs is your break-even ACoS.

Profit margin = Net profit ÷ Revenue × 100
Finance & planningFree calculator

Project Zero

A Brand Registry program that lets eligible brands remove counterfeit listings themselves, without filing a report each time.

Brand Registry & analytics

Proof of Delivery

POD

A record confirming that a shipment was delivered.

Fulfillment & inventory

Q

4 terms

Q1, Q2, Q3

The first three quarters of the year: January to March, April to June and July to September. Prime Day usually falls in Q3.

Finance & planning

Q4

October to December: the peak season with Black Friday, Cyber Monday and holiday shopping. Clicks cost more, and sales rise faster.

Finance & planning

Q5

An informal name for the weeks after the holidays, when shoppers spend gift cards and ad costs fall back.

Finance & planning

Quantity Discount

Lower per-unit prices for larger orders, common for Amazon Business buyers.

Selling basics

R

8 terms

Referral Fee

The commission Amazon takes on each sale, a percentage of the price that depends on the category, often 15%.

Finance & planning

Repeat Purchase Behavior

A Brand Analytics report showing how many of your customers buy again and what share of sales they make up.

Brand Registry & analytics

Return on Investment

ROI

Profit as a percentage of what you spent to earn it.

ROI = Net profit ÷ Cost × 100
Finance & planning

Return Rate

The share of orders that customers return.

Finance & planning

Reverse ASIN Lookup

Researching the keywords a competitor's product ranks or advertises for by starting from its ASIN.

Search & listings

Rule-Based Bidding

An Amazon Ads bidding option that changes bids automatically to aim for a target return on ad spend.

Advertising

S

15 terms

Search Frequency Rank

SFR

A Brand Analytics number ranking a search term by how often it is searched in a marketplace. Rank 1 is the most searched term.

Brand Registry & analytics

Search Term

The exact words a shopper typed before clicking your ad. Not always the same as the keyword you bid on.

Advertising

Search Term Report

An Amazon Ads report listing the searches that triggered your ads, with clicks, spend and sales for each. The main source of new keywords and negatives.

Advertising

Search Volume

How often a keyword is searched, usually per month.

Search & listings

Seller Central

SC

The dashboard third-party sellers use to list products, manage inventory and orders, and read reports.

Selling basics

Seller Fulfilled Prime

SFP

A program where sellers ship Prime orders from their own warehouse while meeting Prime delivery speeds.

Fulfillment & inventory

Sell-Through Rate

STR

The share of available inventory sold in a period.

Sell-through rate = Units sold ÷ Units available × 100
Fulfillment & inventory

Session

A visit to your Amazon pages. All of one shopper's activity within 24 hours counts as one session.

Metrics & formulas

Ships in Product Packaging

SIPP

A program for products that ship in their own packaging without an extra Amazon box.

Fulfillment & inventory

Sponsored Brands

SB

An ad format with your logo, a custom headline and several products, shown at the top of and within search results. Needs Brand Registry.

Sponsored Display

SD

An ad format that targets shoppers by product, category or audience, often to reach people who viewed your product or a competitor's. Billed per click or per viewable impression.

Sponsored Products

SP

Amazon's core cost-per-click ad format. It promotes single products in search results and on product pages.

Stock Keeping Unit

SKU

Your own code for each product variant, used to track inventory.

Fulfillment & inventory

Subscribe & Save

S&S

A program where shoppers get repeat deliveries of eligible products at a discount.

Selling basics

T

5 terms

Target ACoS

The ACoS you aim for on a product: usually break-even ACoS minus the profit you want to keep.

Metrics & formulasFree calculator

Third-Party Seller

3P

An independent seller on Amazon's marketplace, as opposed to a vendor selling to Amazon (1P).

Selling basics

Trailing Twelve Months

TTM

A rolling 12-month period ending today.

Finance & planning

U

4 terms

Ungated

A product or category any seller can list in without approval.

Selling basics

Unit Session Percentage

Seller Central's conversion rate: units ordered divided by sessions.

Unit session % = Units ordered ÷ Sessions × 100
Metrics & formulas

Universal Product Code

UPC

The 12-digit barcode used to identify products in North America.

Selling basics

Unverified Review

A review Amazon cannot match to a purchase on Amazon.

Selling basics

V

9 terms

Value Added Tax

VAT

A consumption tax charged in the UK, EU and other regions.

Finance & planning

Variation

A version of a product, such as a size or color, grouped under one parent listing.

Selling basics

vCPM

Cost per 1,000 viewable impressions. Sponsored Display can be billed this way.

Metrics & formulas

Vendor

1P

A manufacturer or distributor that sells products to Amazon at wholesale; Amazon then sells them to shoppers.

Vendor Central

Vendor Central

VC

The invitation-only portal vendors use to sell to Amazon.

Vendor Central

Vendor Lead Time

VLT

The time a vendor takes to ship after Amazon places a purchase order.

Vendor Central

Verified Purchase

A review label showing Amazon confirmed the reviewer bought the product on Amazon.

Selling basics

Vine

An Amazon program where trusted reviewers receive free products in exchange for honest reviews. Open to Brand Registry sellers.

Brand Registry & analytics

Volume Incentive Rebate

VIR

A rebate a vendor pays Amazon after purchases pass agreed volume levels.

Vendor Central

W

3 terms

Warehouse Deals

Amazon's outlet for returned, used or slightly damaged items sold at a discount.

Selling basics

Wasted Spend

Ad spend on clicks that never lead to an order, usually from searches that do not match what you sell.

Metrics & formulas

Week over Week

WoW

A comparison of a number with the same number last week.

Finance & planning

Y

2 terms

Year over Year

YoY

A comparison of a period with the same period last year. The fairest view for seasonal products.

Finance & planning

Year to Date

YTD

Results from January 1 to today.

Finance & planning

Last updated Oct 3, 2026. Missing a term? Email contact@amplivus.com.

Free calculators

Run the formulas on your numbers

Seven free calculators for the metrics in this glossary. No signup, and the numbers stay in your browser.

Start with break-even ACoS. It tells you which ACoS you can afford before you judge any other number.

FAQ

Glossary FAQs

Straight answers, no sales spin.

What is this Amazon PPC glossary?
A plain-English reference to 215 terms and acronyms used in Amazon advertising and selling, with formulas for the metrics and links to free calculators. It is written by the senior strategists who manage Amazon accounts for brands spending $10K+ a month.
What do ACoS, TACoS and ROAS mean?
ACoS is ad spend divided by ad sales. TACoS is ad spend divided by total sales, ad and organic. ROAS is ad sales divided by ad spend, the inverse of ACoS. Run all three with the ACoS and TACoS calculator.
What is the difference between a keyword and a search term?
A keyword is what you bid on in a campaign. A search term is what the shopper actually typed. With broad and phrase match, one keyword can trigger many search terms, which is why the search term report matters.
What is the difference between Seller Central and Vendor Central?
Seller Central is for third-party sellers who sell directly to shoppers and set their own prices. Vendor Central is invitation-only, for vendors who sell to Amazon at wholesale; Amazon then sets the retail price.
How often is the glossary updated?
We review it when Amazon changes a program, report or name, and add terms as they come up in client work. The date at the bottom of the list shows the last update.
Can I suggest a term?
Yes. Email the term to contact@amplivus.com and we will add it if it helps Amazon sellers.
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