Amazon's Ads Agent: Should Sellers Turn It On?
Quick answer
Amazon sellers should turn on Ads Agent cautiously, as a split test against manual campaigns rather than account-wide. Amazon Ads reported an 18% CPM reduction and a 16% CPA reduction in closed beta at Cannes Lions 2026, but beta cohorts usually have cleaner catalogs and more sales history than the average seller. The same test-before-you-trust rule applies to automation in Meta ads for e-commerce brands.
Amazon just published the numbers sellers have been guessing at for months. At Cannes Lions 2026, Amazon Ads disclosed results for Ads Agent, its tool for automating campaign targeting setup.
That is the first hard performance data Amazon has released on the tool since it started rolling out. It lands right as sellers are deciding how much campaign control to hand over to Ai.
What is Amazon's Ads Agent?
Ads Agent is Amazon's autonomous campaign builder. Instead of a seller manually setting keyword targeting, bids and budget splits across Sponsored Products campaigns, Ads Agent reads the product catalog and historical performance data, then assembles the targeting itself.
Amazon frames it as turning "weeks of campaign setup into minutes." It sits alongside Creative Agent, which generates ad creative, and the Amazon MCP server, which lets external Ai agents plug into the Ads API directly.
The pitch is speed and scale, not automation for its own sake. A seller running dozens of SKUs no longer needs a manually built campaign for each one. That matters most for smaller sellers and accounts without a dedicated PPC manager, which is a large share of the marketplace.
What results did Amazon report for Ads Agent?
According to Amazon Ads' own Cannes Lions 2026 disclosure, advertisers using Ads Agent in closed beta saw an 18% reduction in CPMs and a 16% reduction in CPA. Amazon also said 65% of users saw delivery improvements, and adoption grew 82% quarter over quarter in Q1 2026.
For sellers, that is the strongest signal yet that automated campaign setup is moving from experimental to standard practice on Amazon. Results from beta cohorts with clean data and strong sales history are unlikely to be what everyone else sees on day one.
Should Amazon sellers turn on Ads Agent now?
Yes, cautiously and with monitoring. The beta numbers are strong, but early adopters tend to have cleaner catalogs and more historical data for the system to learn from.
Sellers with thin sales history, messy listings or a narrow product range should expect smaller gains, at least initially.
The bigger risk is the same one every automated bidding tool carries. It optimizes for the objective it is given, and if that objective is raw conversion volume rather than ACOS, TACOS or ROAS, the tool will spend efficiently toward the wrong goal.
How do I test Amazon's Ads Agent safely?
- Keep a control group of campaigns on manual targeting.
- Move a comparable slice of SKUs to Ads Agent.
- Make sure the goal you judge it on is TACOS or ROAS, not conversion volume alone.
- Compare CPA and TACOS between the two groups over a full cycle of a few weeks.
- Expand Ads Agent account-wide only if the test group beats the control.
Does Run1Ads work on Amazon ads?
No. Run1Ads focuses on Meta ads for e-commerce brands. If Meta is part of your mix, it checks your Meta ad account, Pixel and store every hour and tells you the one fix that matters today, ranked by buyers lost. It advises only, so you decide whether any change gets made.
Takeaway: the CPM and CPA gains are real, but treat Ads Agent as a starting point to test against your own account, not a switch to flip and forget.
Key facts
- Ads Agent is Amazon's tool for automating campaign targeting setup across Sponsored Products.
- Amazon Ads disclosed at Cannes Lions 2026 an 18% CPM reduction and a 16% CPA reduction in closed beta.
- Amazon said 65% of beta users saw delivery improvements and adoption grew 82% quarter over quarter in Q1 2026.
- Ads Agent sits alongside Creative Agent and the Amazon MCP server for external Ai agents.
- Automated bidding optimizes for the objective it is given, so the objective you choose matters.
FAQ
Does Amazon's Ads Agent lower CPMs for every seller?
Not necessarily. The reported gains came from a closed beta, and sellers with thin sales history or messy listings should expect smaller gains at first.
How long should I test Ads Agent before expanding it?
Run a split test against manual campaigns for a full cycle of a few weeks. Compare CPA and TACOS before moving more SKUs over.
What is the main risk of turning on Ads Agent?
It optimizes toward whatever goal it is given. If that goal is conversion volume rather than TACOS or ROAS, it can spend efficiently in the wrong direction.
Is there a tool that monitors automated campaigns on Meta the same way?
Yes, for Meta ads. Run1Ads reads your Meta ad account through the official Marketing API, checks ads, Pixel and store every hour and gives you the one fix that matters today. It advises only and never changes your campaigns unless you ask it for a paused draft.
Related reading
- Amazon Ads Is Growing Faster Than Meta and Google in 2026
- Your Amazon Prime Day ACOS Is Spiking. Watch TACoS Instead.
- Agentic Advertising in 2026: Should You Trust Ai With Your Ad Budget?
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Is something like this costing your ads sales right now?
Run1Ads is a live Meta ads consultant for e-commerce brands. It checks your ad account, Pixel and store every hour and tells you the one fix that matters today, with exact steps. We advise, you decide.
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