Amazon Ads negative keywords prevent selected searches from matching an ad, but phrase and exact exclusions have different breadth. Phrase negatives are designed to block searches containing the specified phrase; exact negatives target a narrower query match. Check the campaign’s current rules because negative-match behavior and availability can differ by ad type.
When phrase negatives are useful
A phrase negative can remove a clearly irrelevant theme across multiple query variations that contain the same phrase. For example, an advertiser that does not serve a particular use case may exclude that phrase after confirming it has no useful shopping intent.
Phrase negatives are broader, so they can also remove relevant searches that happen to include those words. Review the wording and likely variations before applying a phrase exclusion at campaign scale.
- Use only for a theme that is consistently irrelevant.
- Check whether the phrase appears in valuable queries.
- Record the reason and scope for each important exclusion.
When exact negatives are useful
An exact negative is intended to block a more specific search phrase while leaving a wider range of related queries eligible. It can be a safer choice when one particular query spends without useful outcomes, but the precise matching behavior should be tested in the live account.
Do not confuse negative exact with positive exact targeting. Negative-match rules are designed for exclusions and do not necessarily mirror positive keyword behavior.
- Start with the specific query that caused the issue.
- Recheck search-term results after the exclusion.
- Avoid adding one-off negatives without enough evidence.
Review negatives as a governed list
Search terms with no orders may still be early in their attribution window or have too little data for a decision. Consider spend, clicks, margin, stock, and relevance before blocking them. A negative can affect future learning and reduce the reach of a campaign.
Keep campaign-level exclusions narrow and review shared lists before reuse. Confirm that a useful query is not blocked in another campaign intended to serve it.
Before adding a negative, search the phrase across existing customer queries and ask whether the exclusion blocks an entire task or only a poor-fit variant. A phrase negative can remove several valuable longer searches; an exact negative is often more contained. Check the current campaign interface for supported scopes and test the result in reporting.
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