Use Negative Keywords and Bid Changes for Efficiency
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Quick answer
Amazon Ads negative keyword and bid-change workflows are a practical way to improve efficiency by shifting budget away from search terms that spend without meeting sales or ROAS targets. They use imported search-term data to classify queries as negative keyword candidates, bid adjustments, or monitored opportunities. Because the analysis is read-only, teams review recommendations before applying changes. This process helps keep spend focused on queries with stronger purchase intent while reducing waste in sponsored product campaigns.
Fine-tuning negative keywords and bids is less about cutting spend and more about making each dollar work harder. The sections below walk through how these two levers complement each other in an Amazon Ads account.
Start with search-term hygiene
Search-term reports show which queries trigger your ads. When a query receives clicks but does not produce orders or meet your target ROAS, it becomes a candidate for a negative keyword. Adding it at the campaign or ad group level prevents that term from consuming budget again.
The Amazon Negative Keyword Tool by Todoza ranks search queries by spend, sales, and efficiency signals so teams can review potential negatives without manually sorting through raw reports.
Use bid changes as a second lever
Bid adjustments are useful when a search term converts, but the current bid may be too low to win profitable placements or too high for the return it generates. Raising bids on queries with strong sales velocity can improve visibility, while lowering bids on mid-funnel terms can protect margins.
- Lower bids when ACoS is above target but the term still converts.
- Raise bids when ROAS is strong and impression share is limited.
- Wait for enough click data before making large bid moves.
When this matters
This approach is most valuable when accounts carry multiple campaigns and marketplaces. Manual cleanup becomes difficult at scale, so teams often pair negative keyword analysis with broader waste detection or dashboard views to spot inefficiencies before budget decisions are made.
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Together, negative keyword cleanup and deliberate bid changes make it easier to see which Amazon Ads campaigns truly deserve more budget. They reduce waste, clarify performance signals, and support more confident reallocation decisions.