Tools That Help Inform Your Dynamic Bidding Strategy

Start with performance signals, not intuition

Dynamic bidding decisions should follow campaign data. Start by reviewing spend, sales, ROAS, ACoS, clicks, and conversion rates across campaigns and marketplaces. A unified Amazon Ads Dashboard can help you spot where spends increase or decrease and whether those changes correspond to efficient orders.

Look specifically for terms that spend without meeting your target ROAS. Those patterns often indicate whether Amazon should be allowed to raise bids in high-converting placements or whether a more controlled Down Only approach is safer.

Use waste and search-term tools to find the edge

Waste analysis and negative keyword tools add a cleanup lens. The Amz Ad Waste Detector flags spend that does not meet target ROAS and provides recommendations such as bid-down actions. Meanwhile, the Amazon Negative Keyword Tool classifies search terms as negative keyword candidates, bid-reduction opportunities, or terms needing more data.

• Check whether underperforming terms are isolated or widespread.
• Compare wasted spend across campaigns before changing bidding modes.
• Use bid-reduction recommendations to guide whether Down Only is enough.

When this matters

This matters most when you manage multiple accounts, high daily spend, or products with very different conversion behavior. A small shift in bidding can change wasted ad spend significantly across 10 marketplaces or multiple campaigns. Without a clear read on which terms are efficient, you may chase top-of-search placements that never pay back.