AdFixer
Glossary

Amazon PPC
glossary.

46 terms in plain English. Definitions for the metrics, strategies, and concepts used in Amazon advertising, from ACoS to wasted spend. Use the search or alphabet to jump to a term.

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46 termsUpdated 2026Plain English
The dictionary

Every term,
in one place.

Definitions written for operators. Useful whether you are new to Amazon advertising or auditing a vendor.

01
A

ACoS (Advertising Cost of Sales)

Ad spend as a percentage of attributed sales. Calculated as (Ad Spend / Ad Revenue) x 100. A 20% ACoS means you spent $20 to generate $100 in ad-attributed sales. The target ACoS depends on your margin and goals.

See alsoROASTACoSBreak-even ACoS
02
A

Ad Attribution

The method Amazon uses to credit sales to ad clicks. Sponsored Products and Sponsored Brands use a 14-day attribution window: sales within 14 days of a click count toward that ad. Sponsored Display adds a 1-day view-through window.

See alsoConversion WindowClick-Through Rate
03
A

ASIN

Amazon Standard Identification Number: the unique 10-character ID assigned to every product in Amazon's catalog. In advertising, specific ASINs can be targeted to place ads on competitor or complementary product detail pages.

See alsoProduct TargetingASIN Targeting
04
A

ASIN Targeting

A targeting strategy that places ads on specific product detail pages by selecting individual ASINs. Common uses include targeting competitor listings or cross-selling complementary products.

See alsoASINProduct TargetingCategory Targeting
05
A

Auto Campaign

A campaign where Amazon's algorithm chooses which searches and products to show the ad on. Auto campaigns use four targeting groups: Close Match, Loose Match, Substitutes, and Complements. Commonly used for keyword discovery before promoting top performers into manual campaigns.

See alsoManual CampaignSearch TermKeyword Harvesting
06
B

Bid

The maximum amount you will pay when a shopper clicks your ad. Amazon uses a second-price auction, so the actual cost is typically slightly above the second-highest bid, up to your maximum.

See alsoBid OptimizationDynamic BiddingCPC
07
B

Bid Optimization

Adjusting bids to hit performance goals such as a target ACoS or ROAS. Automated bid optimization (including AdFixer's algorithm) uses historical data, conversion patterns, and competitive signals to set bids continuously.

See alsoBidDynamic BiddingGoal-Based Bidding
08
B

Break-even ACoS

The ACoS at which advertising neither makes nor loses money. It equals your profit margin percentage. If your margin is 30%, break-even ACoS is 30%. Advertising below break-even is profitable; above it loses money on ad-attributed sales.

See alsoACoSProfit MarginTACoS
09
B

Broad Match

A keyword match type that shows your ad for searches containing all words in your keyword, in any order, plus variations, synonyms, and related terms. It has the widest reach and the least control. Useful for discovery, but spend can rise quickly without monitoring.

See alsoPhrase MatchExact MatchMatch Type
10
B

Budget

The maximum daily spend for a campaign. Amazon resets daily budgets at midnight in your marketplace's timezone. Daily spend can exceed the budget by up to 25% on high-traffic days, but Amazon averages spend over the month.

See alsoBidCampaign
11
C

Campaign

The top level of Amazon PPC structure. Sets the ad type (Sponsored Products, Brands, Display), daily budget, targeting type (auto or manual), and bidding strategy.

See alsoAd GroupPortfolio
12
C

Category Targeting

A product targeting strategy that shows ads across an entire category or refined segments within it. Refinements include brand, price range, star rating, and Prime eligibility.

See alsoProduct TargetingASIN Targeting
13
C

Click-Through Rate (CTR)

The share of impressions that result in clicks. Calculated as (Clicks / Impressions) x 100. Amazon's average CTR ranges from 0.3% to 0.5% by category. A low CTR usually points to a relevance or creative problem.

See alsoImpressionsConversion Rate
14
C

Conversion Rate (CVR)

The share of ad clicks that result in a purchase. Calculated as (Orders / Clicks) x 100. Amazon averages 10 to 15%. Low CVR usually points to a listing issue: images, bullet points, price, or reviews.

See alsoClick-Through RateOrders
15
C

Conversion Window

The period after an ad click during which a sale counts toward that ad. For Sponsored Products and Sponsored Brands the window is 14 days. A click today followed by a purchase 10 days later is attributed to that click.

See alsoAd AttributionOrders
16
C

CPC (Cost Per Click)

The actual amount paid when someone clicks your ad. It is usually lower than your bid because of Amazon's second-price auction. Average CPC is used to forecast spend and benchmark bid competitiveness.

See alsoBidPPC
17
D

Dayparting

Adjusting ad bids or budgets by hour of day and day of week based on when products convert best. AdFixer automates dayparting using historical conversion data, raising bids during high-converting windows and lowering them at other times.

See alsoBid OptimizationBudget
18
D

Dynamic Bidding

Amazon's native bid adjustment feature. It has three modes: Down Only (Amazon only lowers bids), Up and Down (raises up to 100% or lowers), and Fixed Bids (no adjustments). Most advertisers start with Down Only.

See alsoBidBid OptimizationPlacement Modifiers
19
E

Exact Match

The most restrictive match type: an ad shows only when a search exactly matches the keyword or very close variations. Highest control and relevance, lowest volume. 'Running shoes' matches 'running shoes' or 'running shoe' but nothing else.

See alsoBroad MatchPhrase MatchMatch Type
20
I

Impressions

The number of times an ad is displayed to shoppers, regardless of whether it is clicked. Impressions measure reach and visibility. Low impressions usually indicate low bids, restrictive match types, or poor keyword relevance.

See alsoClick-Through RateReach
21
K

Keyword

A word or phrase that triggers an ad when shoppers search for it. Keywords are the foundation of manual Sponsored Products and Sponsored Brands campaigns. A complete keyword strategy uses all three match types together.

See alsoMatch TypeSearch TermNegative Keyword
22
K

Keyword Funnel

A structured keyword lifecycle: Discovery (auto/broad), Testing (phrase), Optimization (exact), Negation (non-converters). AdFixer automates each funnel transition based on performance thresholds.

See alsoKeyword HarvestingNegative Keyword
23
K

Keyword Harvesting

Identifying high-performing search terms from auto campaigns or broad match and promoting them to phrase or exact match in manual campaigns for tighter targeting and bid control.

See alsoAuto CampaignSearch Term ReportKeyword Funnel
24
M

Manual Campaign

A campaign where you select the keywords or products to target. It offers more control than an auto campaign and allows per-keyword bid optimization and match type selection.

See alsoAuto CampaignKeywordProduct Targeting
25
M

Match Type

A setting that determines how closely a shopper's search must match your keyword. There are three types: Broad (widest reach), Phrase (moderate), and Exact (most precise). A layered structure using all three is standard practice.

See alsoBroad MatchPhrase MatchExact Match
26
N

Negative Keyword

A keyword that blocks an ad from showing when the term appears in a search. It reduces wasted spend on irrelevant traffic. Available as negative exact (blocks the exact term) or negative phrase (blocks any query containing the phrase).

See alsoKeywordSearch TermWasted Spend
27
N

New-to-Brand (NTB)

A Sponsored Brands and Sponsored Display metric tracking purchases from customers who have not bought from your brand in the last 12 months. NTB measures customer acquisition rather than repeat purchases from existing buyers.

See alsoSponsored BrandsSponsored Display
28
O

Orders

The number of orders attributed to your ads within the conversion window. Combined with spend, orders are used to calculate ACoS and ROAS.

See alsoACoSROASConversion Rate
29
O

Organic Ranking

A product's position in Amazon's unpaid search results. PPC drives sales velocity, which improves BSR, which improves organic rank. The effect of advertising on organic sales is captured in TACoS.

See alsoBSRSales VelocityTACoS
30
P

Phrase Match

A match type that shows an ad when the search contains the keyword phrase in order, with optional words before or after. 'Running shoes' matches 'best running shoes' and 'running shoes for men' but not 'shoes for running.'

See alsoBroad MatchExact MatchMatch Type
31
P

Placement

Where an ad appears on Amazon. Sponsored Products placements are Top of Search, Rest of Search, and Product Pages. Placement modifiers can raise bids for specific placements.

See alsoPlacement ModifiersTop of Search
32
P

Placement Modifiers

Percentage increases added to a base bid for specific placements. A 50% Top of Search modifier on a $1.00 bid means the bid for the top position can reach $1.50. Available for Top of Search and Product Pages.

See alsoPlacementBidDynamic Bidding
33
P

Portfolio

A grouping of campaigns with shared budget caps and consolidated reporting. Commonly used to manage spend by brand, product line, or strategy.

See alsoCampaignBudget
34
P

PPC (Pay-Per-Click)

An advertising model where you pay only when someone clicks your ad. Amazon PPC includes Sponsored Products, Sponsored Brands, and Sponsored Display. Impressions are free; clicks are charged.

See alsoCPCImpressions
35
P

Product Targeting

A targeting method for Sponsored Products and Sponsored Display that places ads on specific product detail pages. Targets can be individual ASINs or entire categories. Common uses include targeting competitor listings and cross-selling.

See alsoASIN TargetingCategory Targeting
36
R

ROAS (Return on Ad Spend)

Revenue generated per dollar of ad spend. Calculated as (Ad Revenue / Ad Spend). A ROAS of 5x means $5 in sales for every $1 of ad spend. ROAS is the inverse of ACoS: if ACoS = 20%, ROAS = 5x (100% / 20%).

See alsoACoSTACoS
37
S

Sales Velocity

The rate at which a product sells over time. Higher velocity improves BSR and organic ranking. New product launches commonly use PPC to build velocity before organic rank takes hold.

See alsoOrganic RankingBSR
38
S

Search Term

The actual words a shopper types into Amazon's search bar, which may differ from your keyword depending on match type. The Search Term Report shows which queries triggered your ads.

See alsoKeywordSearch Term Report
39
S

Search Term Report

An Amazon report showing the actual search queries that triggered your ads, with performance data. Used for keyword harvesting and negative keyword mining. Available with up to 60 days of history.

See alsoSearch TermKeyword HarvestingNegative Keyword
40
S

Share of Voice (SOV)

The percentage of total ad impressions in a category, or for specific keywords, that your brand captures. Higher SOV means greater visibility in paid search relative to competitors.

See alsoImpressions
41
S

Sponsored Brands

An ad type that shows a logo, custom headline, and up to three products at the top of search results. Requires Brand Registry. A video format is also available. Commonly used for brand awareness and Amazon Store traffic.

See alsoSponsored ProductsSponsored DisplayBrand Registry
42
S

Sponsored Display

An ad type that reaches audiences on and off Amazon through product, audience, or views-remarketing targeting. Ads appear on product detail pages, review pages, and external sites. Used for retargeting and audience expansion.

See alsoSponsored ProductsSponsored Brands
43
S

Sponsored Products

The most common Amazon ad type. It promotes individual listings in search results and on product pages. Available regardless of Brand Registry status. It typically drives the highest direct sales attribution.

See alsoSponsored BrandsSponsored Display
44
T

TACoS (Total Advertising Cost of Sales)

Ad spend as a percentage of total revenue, including organic sales. Calculated as (Ad Spend / Total Revenue) x 100. TACoS captures the effect of advertising on organic sales, which ACoS does not.

See alsoACoSROASOrganic Ranking
45
T

Top of Search

The ad placement at the top of Amazon search results, above all organic listings. It has the highest visibility and CTR, along with the highest competition and cost. Bids can be increased for this placement using placement modifiers.

See alsoPlacementPlacement Modifiers
46
W

Wasted Spend

Ad spend on clicks that do not convert. It is the primary driver of high ACoS. Common methods to reduce it include negative keywords, bid reductions on poor performers, and tightening match types. AdFixer identifies and reduces wasted spend continuously.

See alsoNegative KeywordACoSBid Optimization
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