How to Lower Your CPA in Amazon Ads

Start with search term cleanup

Search terms that receive clicks but no orders are the fastest CPA leaks. Review your Amazon Ads Search Terms report and mark terms that have spent above your target CPA or have zero conversions after a meaningful click volume. Add them as negative exact or phrase keywords to stop future spend.

The Amazon Negative Keyword Tool by Todoza is designed to rank search terms by campaign-specific performance signals, so you can prioritize which terms to negate or reduce bids on. It remains read-only, meaning you or your team review and approve the changes.

• Focus on high-spend, zero-order terms first.
• Use exact negatives for single bad queries and phrase negatives for broader patterns.
• Recheck negatives weekly during active campaigns.

Refine targeting and rebalance budgets

After cleanup, adjust where remaining budget goes. Shift spend from broad or auto targets that produce inconsistent orders toward exact keywords, product targets, or placements with lower CPA. Small bid reductions on high-impression, low-conversion targets can also improve efficiency without pausing discovery.

Analytics modules that track wasted spend against ROAS or CPA can help you identify targets that miss your efficiency threshold. Use those signals to build a manual cleanup plan rather than applying blanket cuts.

When manual CPA cleanup matters most

Manual cleanup is especially useful when campaigns have enough click history to show patterns but not so much data that reviewing every term becomes impractical. It also matters when several accounts or marketplaces are involved, because cross-campaign visibility helps catch repeated inefficiencies without switching between reports.

Combining search term cleanup with a dashboard that tracks CPA, wasted spend, and period trends gives you a clearer picture of whether reductions are holding. The Amazon Ads Dashboard by Todoza provides a single view, but it is read-only; changes are still made manually in Amazon Ads.