Negative Keywords

Negative keywords should remove waste, not learning.

Negative keywords are powerful because they stop spend immediately. That is also why they can damage growth when used too aggressively. The decision should depend on relevance, data volume, match type, conversion, ranking value, and whether the term represents one bad query or a whole bad theme.

Amazon PPC negative keyword decision tree showing when to use negative exact, negative phrase, lower bids, wait for data, or harvest winners
Method overview

This guide is built as a repeatable workflow. Follow the steps in order, write down the reason for each change, and review the result after enough clicks and orders have collected.

The amazon ppc negative keyword decision tree steps

  1. 1. Check relevance
  2. 2. Check clicks
  3. 3. Check orders
  4. 4. Check theme
  5. 5. Choose exact
  6. 6. Choose phrase
  7. 7. Review impact

Step 1: Ask if the query is relevant

If the search term is clearly unrelated to your product, it is a negative candidate. If it is relevant but not converting, do not rush. Relevant traffic may need a bid change, listing fix, or more data instead of a negative.

Step 2: Check whether there is enough data

A term with two clicks and no order is not proof. A term with enough clicks to reasonably expect a sale deserves action. Use your normal conversion rate and product price to decide the click threshold.

Step 3: Decide if the problem is one query or a theme

Negative exact blocks one query. Negative phrase blocks a phrase pattern. If only one query is wasteful, use exact. If a whole theme is irrelevant, use phrase. Phrase negatives should be used carefully because they can block useful long-tail searches.

Amazon PPC Negative Keyword Decision Tree workflow diagram explaining the middle steps of the method
Amazon PPC Negative Keyword Decision Tree workflow: how decisions move from raw PPC data into controlled account actions.

Step 4: Do not negate winners from discovery campaigns

When auto, broad, or phrase campaigns find a converting search term, harvest the winner into exact. You may later negative exact it in the discovery campaign to avoid overlap, but only after the exact version is active.

Step 5: Use bid reduction when the term is relevant but weak

A relevant term with high ACoS may need a lower bid rather than a negative. This keeps learning alive while reducing budget pressure.

Step 6: Recheck after adding negatives

Negatives change where spend flows. After cleanup, check whether budget moved to better search terms or whether total sales dropped. Good cleanup should improve quality, not simply reduce traffic.

Amazon PPC Negative Keyword Decision Tree decision tree showing what action to take based on PPC performance signals
Decision tree for turning the method into weekly Amazon PPC actions.

Step 7: Maintain a negative keyword log

Track what was added, why, and where. This prevents accidental blocking of launch keywords, ranking terms, or terms that were only temporarily weak because the listing was not ready.

Decision table

QuestionIf yesIf no
Is it irrelevant?Negative exact/phraseReview conversion
Enough clicks?Take actionWait
Whole bad theme?Negative phraseNegative exact
Relevant but costly?Lower bidKeep or harvest
Apply this to your account

If your Amazon PPC account has unclear campaign purpose, wasted spend, unstable TACoS, or weak ranking movement, start with the first step and do not skip the diagnosis. The best PPC accounts are controlled by written rules, not random bid changes.

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