Amazon negative keywords stop your Sponsored Products ads from showing on searches you don't want to pay for. Find them in the search term report. Exclude clearly off product terms right away. Review relevant terms only after enough clicks and spend, starting at Amazon's 20 click floor. Use negative exact for one query, negative phrase for a pattern.
Amazon's own help page on adding negative keywords shows you how to block a search term. It does not tell you when a term has earned the block, and that gap is where most wasted ad spend lives.
A search term with 15 clicks and no orders looks like proof. At a 10% conversion rate, it is not. A term that converts exactly as well as the rest of your ad group still has about a 21% chance of zero orders after 15 clicks. Psychologists Amos Tversky and Daniel Kahneman called this the belief in the law of small numbers: we read certainty into samples far too small to carry it.
Cut too early and you block searches that would have sold. Cut too late and you keep paying for searches that never will. This guide is for brands running Sponsored Products with enough traffic to review search terms weekly.
What Amazon negative keywords block, with real examples
Amazon negative keywords are search terms you tell Sponsored Products to skip, so your ad does not show when a shopper's query matches them. You can add them at the campaign or ad group level, and Amazon says they can take up to 72 hours to take full effect ( Amazon Ads, Verified November 2026).
Most negatives fall into a few groups. For a brand selling a bamboo cutting board set, they look like this:
- Wrong material: plastic cutting board, glass cutting board
- Wrong product: cutting board oil, knife block
- Wrong intent: DIY cutting board, how to clean cutting board
- Moved to exact match: terms you now bid on in an exact match campaign, if you choose to route them away from auto and broad campaigns
Test these against your own data. "Cheap" is a common example negative, yet for some products it is a buying word.
Negative exact vs negative phrase
Negative exact blocks a query that matches your term exactly, or a close variation of it. Negative phrase blocks any query containing the complete phrase. Amazon caps negative phrase at 4 words and negative exact at 10 words, each within 80 characters ( Amazon Ads, Verified November 2026).
| Negative exact | Negative phrase | |
|---|---|---|
| Blocks for "cutting board oil" | Only "cutting board oil" and close variations | "best cutting board oil," "cutting board oil food grade," and every query containing the phrase |
| Word limit | 10 | 4 |
| Use it when | One specific query wastes spend | Every query with that phrase is off product |
| Main risk | Variants keep running | A short phrase blocks good queries |
The classic phrase mistake is negating "plastic" on a bamboo board. That also blocks "plastic free cutting board," a shopper looking for exactly what you sell. Keep phrase negatives to two or three words that only appear in bad queries.
How to find negative keywords in the Amazon search term report
The Amazon search term report lists the actual queries shoppers typed before clicking your Sponsored Products ads, with clicks, spend, orders, and sales for each one. Every negative keyword decision should start there, because it is the record of which searches cost money without selling. The process is the same whether you ship through FBA or fulfill orders yourself.
- In Campaign Manager, open Measurement & Reporting, then Sponsored ads reports, and click Create report.
- Choose Sponsored Products and the Search term report type. Set a 30 day range that ends a few days before today, since orders can still be attributed to recent clicks.
- Download the file and keep a copy. Amazon only holds a limited window of search term history, so your own archive is the only long view you will have.
- Filter to rows with zero orders, then sort by spend, highest first.
- Read four columns: the search term, clicks, spend, and orders.
Figure 1: Where to create the search term report and which settings to choose.
Figure 2: A search term report filtered to zero orders and sorted by spend. Illustrative sample data.
Then run one more filter: terms that have orders but an ACoS far above your break-even. Those are bid problems, not negative keyword problems, and our guide to what a good ACoS on Amazon looks like shows how to set that line.
When should you add an Amazon negative keyword?
Add an Amazon negative keyword right away when a search term clearly describes a product you don't sell. For relevant terms, wait until clicks and spend are large enough that zero orders would be unusual at your normal conversion rate. Amazon suggests evaluating a term only after it has received at least 20 clicks ( Amazon Ads targeting guide).
The click check. If a term truly converts at your normal rate, the chance it goes a given number of clicks with no orders is 1 minus your conversion rate, multiplied by itself once per click. The table shows where that chance drops below 10%.
| Ad group conversion rate | Clicks with zero orders before that chance drops below 10% |
|---|---|
| 5% | 45 |
| 10% | 22 |
| 15% | 15 |
Amazon's 20 click floor fits an ad group converting near 10%. At 5%, the same evidence takes more than twice as many clicks. Treat the line as a review threshold, not proof that a term can never sell.
The spend check. Your break-even cost per order is your price multiplied by your break-even ACoS. A $40 product with a 30% margin before ad spend can afford $12 in ad spend per order. How fast a term reaches that line depends on your cost per click.
The maturity check. Before excluding a relevant term, confirm that attribution has settled, the query's intent matches the ad group, and the spend matters relative to your margin. When evidence is mixed, lower the bid or isolate the term instead.
Here is the approach applied to an illustrative 30 day excerpt for that $40 set, with a 10% ad group conversion rate.
| Search term | Clicks | Spend | Orders | Sales | ACoS | Decision |
|---|---|---|---|---|---|---|
| bamboo cutting board set | 140 | $168.00 | 16 | $640 | 26% | Keep; consider moving to exact match |
| cutting board | 95 | $114.00 | 5 | $200 | 57% | Lower the bid or isolate; negate only if it stays unprofitable |
| plastic cutting board dishwasher safe | 26 | $31.20 | 0 | $0 | None | Off product: negative phrase "plastic cutting board" |
| cutting board oil | 9 | $10.80 | 0 | $0 | None | Off product: negative phrase "cutting board oil" now |
| bamboo serving board | 24 | $28.80 | 0 | $0 | None | Passed click and spend checks: review intent, then negative exact |
| large wood cutting board | 12 | $14.40 | 0 | $0 | None | Spend check passed, click check not: lower the bid and wait |
The three excluded terms accounted for $70.80 in spend over the period. Excluding them may prevent similar future spend, though it cannot recover what is already gone.
The term most sellers want to cut is "cutting board," because a 57% ACoS hurts to look at. It still sells. Start with a lower bid or a separate campaign, and exclude it only if it stays unprofitable.
How to make a negative keyword list that keeps working
A negative keyword list is a running record of the queries and phrases each campaign should not pay for. It comes from three sources: off product terms you know before launch, search terms that fail the checks above, and terms you choose to route into exact match campaigns.
- Launch list. Before campaigns go live, write down the materials, product types, sizes, and intents you do not sell. Check each against your keyword research so you never block a phrase real buyers use for your product.
- Report negatives. Add these weekly, using the checks above.
- Routing negatives. When a term performs well in an auto or broad campaign, add it to an exact match campaign for tighter bid control. A negative exact in the source campaign can then steer that traffic and keep reporting clean. This is an organizing choice, not a fix for self competition: Amazon says you won't bid against yourself across match types on the same keyword ( Amazon Ads targeting guide). Our guide to keyword targeting in Amazon PPC covers the structure.
When single terms are too small to pass the click check, look for shared words. Ten queries containing "board oil," each with 4 clicks and no orders, add up to 40 clicks on one idea. Read each query first, because one word can carry different intent: "oil resistant cutting board" may describe your product. That is why "board oil" is a safer phrase negative than "oil" alone.
Across many campaigns, upload negatives through bulk operations.
FROM THE CMO DESK
In the accounts CMO audits, the most expensive negative keyword problem is often not a missing list. It is set and forget management: campaigns launched months ago whose search terms nobody has opened since. The waste is small on any given day, which is why it runs so long.
If no one in your account owns this routine every week, that is the work our Amazon PPC management team runs.
Negative product targeting for pages that waste clicks
Negative product targeting does for product pages what negative keywords do for searches. It stops your Sponsored Products ads from appearing on specific ASINs or entire brands. Amazon says these exclusions can take up to 96 hours to take effect ( Amazon Ads, Verified November 2026).
In auto and product targeting campaigns, the search term column lists ASINs as well as queries. Review ASINs with high spend and weak conversion before excluding them, since zero orders alone does not explain why. When a page is clearly a poor fit, open the campaign or ad group, click Negative targeting, then Add negative product targets, and exclude by brand or product.
Figure 3: Where to add negative product targets and how exclusions work.
How often to review negatives, and how to remove one
Review search terms weekly for active campaigns, audit the full negative list monthly, and check phrase negatives quarterly. To remove a negative keyword from an Amazon campaign, open the campaign or ad group, go to Negative targeting, select the term on the Negative keywords tab, and archive it. To restore it later, add it again as a new negative.
Amazon recommends letting negatives run two weeks or more before changing strategy again ( Amazon Ads targeting guide).
The quarterly check matters because blocked queries never appear in your report, so over-negation is invisible. Compare phrase negatives against your keyword research and Brand Analytics data, and archive any that now block queries describing your product.
The negative keyword rule sheet
| Situation | Action | Match type |
|---|---|---|
| Clearly off product query | Negate now | Exact for one query; phrase for a 2 to 3 word pattern |
| Relevant, passed click and spend checks, zero orders | Review intent, then negate | Exact |
| Relevant, passed only one check | Lower the bid and wait | None |
| Converting, ACoS above break-even | Lower the bid or isolate; negate only if it stays unprofitable | Exact, if at all |
| Moved to an exact match campaign | Optional: route traffic away from the source campaign | Exact |
| Product page with high spend and weak conversion | Review fit, then exclude | Negative product target |
| Cadence | Weekly report, monthly list audit, quarterly phrase check, two weeks between strategy changes |
Measure whether the negatives worked
Before adding negatives, record spend, clicks, orders, sales, and ACoS for the affected terms, plus total campaign sales. Once data settles, compare a similar period. You want less irrelevant spend without a disproportionate drop in profitable sales. Log each negative with its date and reason, and if bids, budgets, or seasonality changed too, don't credit the whole shift to negatives.
Where negative keywords stop helping
Negative keywords stop waste on searches that should never have matched. They cannot fix a listing that fails to convert the right searches, and they cannot show you what they block. Heavy negation can quietly shrink reach while the report looks cleaner every week.
If your most relevant terms get clicks but few orders, the problem is often the detail page, which is why clicks with no sales usually point to the listing, not the bids. Low traffic ad groups may never pass the click check, and new products have no stable conversion rate yet, so lean on relevance judgment there. Negating every term above your target ACoS leaves you with only the narrowest, cheapest searches, which protects efficiency at the cost of growth.
Paying for searches that never sell?
If your search term report holds terms you have meant to deal with for weeks, that spend is still running. CMO's Amazon PPC management team reviews search terms, negatives, and campaign structure in every engagement, starting with a free consultation.
Amazon Negative Keywords: What Sellers Ask Next
Should I add negative keywords to automatic campaigns?
Yes. Auto campaigns match on Amazon's reading of your listing, so they reach the widest spread of queries, including off product ones. Amazon suggests running an auto campaign about two weeks before building manual campaigns from it ( Amazon Ads targeting guide), a sensible point for its first search term review.
Should negatives go at the campaign level or the ad group level?
Use campaign level for terms wrong for every product in the campaign, like a material you never sell. Use ad group level when a term is wrong for one product but right for another, such as a size only one ASIN carries.
Is negating a keyword the same as pausing it?
No. Pausing a keyword stops that one bid, but broad match, phrase match, and auto targets can still match the same search term. A negative blocks the search term itself in that campaign or ad group, whichever target would have caught it.
Do negative keywords cover misspellings and plurals?
Amazon says both match types also block close variations, but it does not publish a full definition of what counts. After adding a negative, check the search term report a week or two later. If a variant still shows spend, add it as its own negative.
Should I negate my own brand name?
It depends on each campaign's job. Branded searches come from shoppers who already know you, so they can make generic campaigns look stronger than they are. Some brands negate their name in generic campaigns and run a dedicated brand campaign. Weigh brand defense needs first.
