Comparing Amazon Suggested Bids to Actual Ad ROAS

Metrics to compare with suggested bids

Start with three metrics that directly show whether a suggested bid is working: return on ad spend, conversion rate, and wasted spend. ROAS tells you if the revenue generated by a campaign justifies the bid. Conversion rate shows whether the clicks you are buying are turning into orders. Wasted spend highlights clicks and search terms that did not produce results.

At the search term level, a high click count with no orders often means the bid is too high for that term or the targeting is not relevant. When order value and conversion rate are healthy, the suggested bid is more likely aligned with your actual performance.

A workflow to evaluate suggested bids

Use a consistent comparison window rather than making changes after a single day. Import your Amazon Ads reports and compare suggested bid amounts against actual ROAS for the same period. A tool like the Amazon Ads Dashboard by Todoza can consolidate spend, sales, ROAS, ACoS, clicks, and wasted spend so the comparison is easier to review.

• Record the suggested bid and the actual CPC for each target.
• Check whether the target is meeting your minimum ROAS.
• Look for high-spend targets with low conversion and no attributable orders.
• Adjust bids only after reviewing enough clicks and order data.

When this matters

This comparison matters most when campaigns are spending consistently but not hitting profitability goals. Suggested bids can sometimes be higher than what a low-margin product can support. In those cases, your own ROAS and conversion data should guide the decision more than the platform's bid range. For campaigns with limited data or new targeting, suggested bids can be a useful starting point, but they should still be checked against early performance before they are left running.