Amazon PPC Keyword Match Types: Broad, Phrase, and Exact (and When to Use Each)
Match type decides which shopper searches your keyword can enter, so a wrong choice either starves a good keyword or feeds a bad one with your budget.
Amazon has three match types for Sponsored Products keyword targeting: broad, phrase, and exact. The definitions have not changed much, but broad match now reaches further than most older guides say, and that shifts how you should structure campaigns around it. This guide covers how each type behaves today, how to bid across them, and a decision framework for picking one per campaign.
Quick Answer: how Amazon's three match types differ
- Broad match: Shows your ad for searches that contain your keyword terms in any order, plus singulars, plurals, variations, synonyms, and related terms. Widest reach, least control.
- Phrase match: Requires all terms of your keyword in the same order. Extra words before or after are allowed. Middle ground on reach and control.
- Exact match: Matches the keyword word for word, plus plurals and very close variants. Narrowest reach, most control.
- Bid order: Amazon's own guidance is to set the highest manual bid on exact, a lower bid on phrase, and the lowest on broad.
- The opportunity: Broad and phrase find queries you would never think to type. Exact lets you pay more on the ones you have proven.
- The risk: Match type controls reach, not relevance. A term that matches can still fail to convert, and broad match will find plenty of those.
Why match type is a budget decision, not a keyword setting
Every keyword you add is a bet on a set of shopper searches. Match type sets how large that set is. Broad bets on a wide set at a low bid and pays for the discovery. Exact bets on a narrow set at a higher bid and pays for the control. Operators who treat match type as a label end up with campaigns where the same search can trigger three of their own keywords, each at a different bid.
This matters most when you run many campaigns and ASINs. A structure that is tidy at 20 keywords turns into a negation and promotion problem at 2,000, and that is where match type decisions either compound or leak.
How each Amazon match type works today
Broad match reaches variations, synonyms, and related terms
Amazon describes broad match as a shopping query that can contain your keyword terms in any order and may include singulars, plurals, variations, synonyms, and related terms. In practice, a broad keyword of "wireless headphones" can serve on a search that never contains the word "wireless."
Perpetua reported in 2023 that Amazon had expanded Sponsored Products broad match to include variations and synonyms, beyond the plural and acronym variants it covered before. If your mental model of broad match is "my words in any order," it is out of date.
Broad match modifiers, the "+" syntax some sellers used to lock individual words, are not available in Sponsored Products campaigns, so broad now means broad.
Phrase match keeps word order and allows extra words
Phrase match requires the search to contain all components of your keyword in the same order. Amazon's examples allow words before or after, so "running shoes" can match "women's running shoes" but not "shoes for running." Phrase also includes the plural form of the keyword.
Phrase is the tool for a modifier you want to allow without surrendering word order: size, material, color, or a shopper's added qualifier.
Exact match is word for word, with very close variants
Exact match matches the search term word for word, same words in the same order, and includes the plural form. Amazon also describes it as covering very close variations. It does not match a search with an extra word added, so "white running shoes" will not serve on "best white running shoes."
Side by side
| Match type | What can trigger your ad | Reach | Where it goes wrong |
|---|---|---|---|
| Broad | Your terms in any order, variations, synonyms, related terms | Widest | Related terms that never convert keep collecting clicks until you negate them |
| Phrase | Your full keyword in the same order, with words before or after | Moderate | Unwanted modifiers ride along ("cheap," "used," a competitor brand) |
| Exact | The keyword word for word, plurals, very close variants | Narrowest | A proven term with low search volume cannot scale on its own, and you miss new queries entirely |
How to choose a match type for each campaign
The right match type depends on what the campaign is for. Decide the job first, then pick the type.
Use broad to discover queries you have not thought of
Broad is a research tool you pay for in clicks. Run it at the lowest bid on terms closely tied to your product, and read the search term report to see what shoppers typed. Everything you learn there feeds the other two types. Because broad now includes synonyms and related terms, expect a longer tail of irrelevant queries than the older guides warn about, and budget for the negation work.
Use phrase to keep a core term while allowing qualifiers
Phrase works when shoppers add words around a term you care about. Your keyword "black boots" can pick up "tall black boots for women" without the word order scrambling into a different product. It is also where many accounts find steady volume, because phrase holds a term in place while still collecting variations you would not list one by one.
Use exact for terms that have already earned it
Exact is for keywords with sales history, brand terms you want to defend, and niche terms where the shopper's intent is unambiguous. This is where you set your highest manual bid, because the traffic is the most predictable. Move a term here once the search term report shows it converting at or below your target ACoS, not before.
The decision framework
| Your situation | Start with | Bid posture | Next move |
|---|---|---|---|
| New product, no search term data | Broad and automatic targeting | Lowest | Harvest converting search terms after enough clicks to judge them |
| Core term with many shopper modifiers | Phrase | Middle | Negate modifiers that waste spend, promote winners to exact |
| Proven converter or defended brand term | Exact | Highest | Review bids as ACoS and conversion rate move |
| Niche product with few relevant searches | Exact, plus phrase for variants | Higher | Keep a small broad budget to catch new language |
| Mature account, stable exact campaigns | Exact core, broad and phrase running alongside | Tiered by type | Cross-negate so each query has one intended home |
Bid across match types in a deliberate order
Amazon's guidance for manual bids is the highest bid on exact, a lower bid on phrase, and the lowest on broad. The logic is that you know the most about exact terms and the least about broad ones. Treat the order as a starting point and let the data move it. A broad keyword that converts better than your exact version of the same term is telling you the exact bid is too low or the exact campaign is missing close variants.
Set the base bid from your target ACoS, the product price, and the conversion rate, then adjust by match type. For deeper bid mechanics, see our guide to Amazon bidding strategies, and for how to arrange campaigns around them, see Amazon PPC campaign structure.
Negative keywords make broad and phrase safe to run
Broad and phrase only stay efficient if you can remove the queries that do not belong. Amazon supports negative phrase and negative exact keywords. Negative phrase blocks a search that contains your set of words in sequence, with a four-word limit. Negative exact blocks only the precise query, with a ten-word limit. Our guide to Amazon negative keywords walks through both.
Negatives also solve the overlap problem. When the same term lives in a broad, a phrase, and an exact campaign, the three compete for the same searches, and you pay for the confusion. Negate the exact terms in your broad and phrase campaigns so a query lands where you intended.
What to do if you are already running mixed match types
If your account already has broad, phrase, and exact keywords scattered across ad groups, you do not need to rebuild it. Work in this order:
- Pull the search term report for each campaign and sort by spend.
- Flag every query with meaningful clicks and no orders, and add it as a negative exact, or negative phrase when a shared word is the problem.
- Find queries converting at or below your target ACoS, and add them as exact keywords with their own bids.
- Add the promoted exact terms as negative exact in the broad and phrase campaigns that found them.
- Repeat on a fixed schedule, since broad now keeps surfacing new variations.
Our guide to the Amazon search terms report covers the harvesting step in detail, and automatic targeting is the usual source of new terms for the process. For finding exact-match candidates before you have spend behind them, the Amazon Keyword Research tool is a good place to start.
Where manual match type management stops scaling
Steps three and four are the ones that break. Promoting a winner to exact and negating it everywhere else is a single edit on one campaign. On an account with hundreds of campaigns and thousands of search terms, it is a weekly queue of edits that never fully clears, and each term you miss keeps competing with itself.
Our platform Qinetix, the ads automation layer from Trellis, handles that volume. It applies the promotion and negation logic you define across campaigns and moves bids within the guardrails you set, so match-type sprawl stops being a spreadsheet job. You still decide the rules: which terms qualify for exact, what ACoS is acceptable, what gets negated.
Qinetix has a limit worth stating. Match type controls reach, not relevance, and no automation changes that. A term still has to convert, and a listing that does not earn the click will not be fixed by a better match type. If you want to see how that logic would run against your own campaign structure, book a walkthrough.
Conclusion: pick the match type by the job, then police the overlap
Use broad to find queries, phrase to hold a core term while allowing qualifiers, and exact for terms that have proven they convert. Bid exact highest and broad lowest, negate aggressively, and make sure every query has one intended home. Broad match now reaches synonyms and related terms, so the discovery is richer and the cleanup is bigger than older advice assumes.
Frequently Asked Questions
Use broad for discovery, phrase to hold a core term while allowing words around it, and exact for terms with proven sales or a clear shopper intent. Most mature accounts run all three, with exact as the core.
Amazon's guidance is the highest manual bid on exact, a lower bid on phrase, and the lowest on broad. Treat that as a starting point and adjust from conversion data and your target ACoS.
Yes. Amazon describes broad match as covering your terms in any order along with singulars, plurals, variations, synonyms, and related terms. Expect searches that do not contain your exact words.
Broad match modifiers are not available in Sponsored Products campaigns. Standard broad match now handles variations and synonyms, and phrase or exact match covers cases where you need tighter control.
No. Phrase match requires your keyword's terms in the same order, with words allowed before or after. "Running shoes" can match "women's running shoes" but not "shoes for running." Phrase also includes the plural form.
Yes, especially with broad and phrase. Negative exact blocks one precise query, up to ten words. Negative phrase blocks any search containing your words in sequence, up to four words.
It can, but only with cross-negatives so each query has one intended home. Without them, your own keywords compete for the same searches and blur your data.
When the search term report shows it converting at or below your target ACoS across enough clicks to trust the result. Add it as exact with its own bid, then negate it in the campaign that found it.