Amazon's Algorithm Isn't About Keywords Anymore: What Smart Sellers Need to Know in 2026

In the old days, running ads on Amazon was more or less a game of keywords. Just load up your campaigns with popular search terms and place a decent bid, and watch the leads start pouring in. It’s been working pretty well for a very long time. However, those sellers who still stick to this strategy in 2026 are unknowingly wasting their ad budgets while other sellers with better strategies get ahead of them. This is because the Amazon algorithms, A9 and A10, now consider much more than just keywords to work in their favor.

The Weekly Search Term Audit: Your First Line of Defense

No successful Amazon PPC campaigns begin without a rigorous search term analysis on a weekly basis. This cannot be done once and ignored forevermore; it involves retrieving the search term reports and finding out which keywords are converting, which are wasting budget with no conversions, and which keywords need to be promoted.

The real value of this habit is compounding clarity. Over time, you stop guessing and start operating from data. When a term consistently converts, you escalate it. When it consistently drains budget without a single sale, you cut it. This weekly discipline is what separates sellers who scale profitably from those who wonder where their ad spend went.

Exact Match Isolation: Protecting Your Winners

One of the most overlooked tactics in Amazon campaign management is exact match isolation. When a broad or phrase match keyword proves it can convert, the next logical step is to move it into its own exact match campaign. This gives you full control over the bid, prevents overlap with weaker terms, and allows you to scale your winners without interference.

Negative keywords are equally important. The best-performing keywords can be used as negative keywords for broad-reaching campaigns to ensure that traffic reaches only the right ad groups. In turn, the budget allocated to the campaign is used efficiently without being diluted by any irrelevant match.

Negative Keywords: The Underrated Profit Driver

The vast majority of advertisers on Amazon PPC focus on keywords they wish to advertise against. There are far fewer who give thought to the keywords they do not wish to advertise against. Negative keyword management may be the single most undervalued tool in the arsenal of Amazon marketers, and ignoring it will result in rapidly growing ACoS.

This process is straightforward in theory but demands discipline for successful implementation. Negative keywords are added as they come up. Campaign overlap is minimized. And the cycle begins anew each week. Done well, negative keyword management operates like a sieve, ensuring that your ad spend is directed at searches which have true purchase intent behind them.

Bid Adjustment Framework: Spending Smarter, Not Just More

A higher budget doesn't necessarily mean higher profits; what really counts is how the money is being spent. A good bidding strategy implies continuously increasing bids in relation to campaigns showing good conversion rates, decreasing bids for placements where all money is wasted without results, and optimizing bids based on placement types.

For instance, Amazon lets you adjust bids on top of search, rest of search, and product detail placements. A lot of merchants don't pay attention to these features, and they have no other choice but to pay extra for placements showing poor conversions. However, merchants who do manage to increase their profits based on the existing budget.

Product Targeting and Audience Targeting: Beyond the Search Bar

Amazon’s new algorithm is more than a change in keyword focus since buyer behavior has changed as well. With Sponsored Display and product targeting, you can now target shoppers who are checking out competitor listings, looking at other category pages, or who may have looked at one of your products’ listing pages but did not buy anything yet.

With product targeting, you are now able to pinpoint and directly target competing listings that have lower reviews or less competitive pricing, putting your products where buyers are comparing different options. Using Sponsored Display for audience targeting via retargeting enables you to reactivate potential customers who may have viewed your listings but never purchased from them. Evaluating audiences that don’t perform well and getting rid of them becomes as essential as identifying audiences worth scaling.

CTR Optimization: The Signal Amazon Is Always Watching

CTR is one of the most important factors that contribute to the relevancy of the Amazon ad via the algorithm. If the CTR of the advertisement is poor, it will alert the Amazon algorithm that the ad will not be relevant in some search terms that it should appear in.

A higher click-through rate begins with optimizing your product images. An eye-catching product image always performs better than those on a white background in competitive products. Besides product images, coupon and pricing tactics could make your product more visible in search results and boost your CTR. In order to have successful large campaigns, it is critical to fix your lower CTR campaigns first. Otherwise, you waste your budget and efforts.

Listing Conversion Rate: Fix the Foundation Before You Scale

Here is the mistake that kills otherwise well-structured Amazon ad campaigns: scaling traffic to a listing that cannot convert. Your conversion rate (CVR) is a direct reflection of how well your listing earns the trust of shoppers who arrive on your page. Images, bullet points, A+ content, and reviews all feed into this number.

Before increasing ad spend, sellers should audit their listings for conversion gaps. Are the images showing the product in use? Are the reviews recent and responding to common objections? Is the pricing competitive for the category? Scaling a high-CVR listing is efficient and profitable. Scaling a weak one is expensive. Fix the listing first, then open the budget.

Campaign Structure: Clarity That Scales

Mismanagement of the ad campaign is another major reason for inefficient spending of your Amazon advertising budget. If both branded and non-branded keyword sets are used together in the same campaign, or if more than one match type is included in one ad group, it will become extremely difficult to understand what’s going on with your data.

You should have separate ad campaigns for your branded and non-branded keyword set, use different match types to be able to adjust their bids individually, and never target different buyer intents in one campaign. Campaign structuring is essential for proper management and growth of your ad strategy.

ACoS and TACoS: The Metrics That Actually Tell the Story

While ACoS is the key performance indicator for any Amazon seller, it is the Total ACoS that reflects the true condition of your account because a single advertising campaign could have a high ACoS on its own while also having generated an adequate amount of organic ranking growth that makes the whole investment profitable.

The difference between these two performance indicators will help you determine the necessary goals since when launching a product, a relatively high ACoS is normal and even desirable because you purchase rankings and reviews at this stage. The more developed a product becomes and the higher its organic ranking velocity is, the lower TACoS must be.

AI and Automation: A Tool, Not a Replacement for Strategy

Automated processes and AI-based bid management techniques have started to be used in Amazon PPC campaigns in recent times, and they do offer tangible benefits when applied appropriately. However, the downside is that some sellers rely solely on automation for decision-making while ignoring any form of follow-up.

The role of automation is to accelerate any decision you make, be it good or bad. Monitoring your automation efforts carefully by identifying examples of poor targeting while they still have little impact will ensure your account remains healthy. AI is an amplifying factor, and its effectiveness largely depends on the soundness of your strategy.

The New Framework for Amazon Advertising Success

It is safe to say that the current Amazon algorithm favors those who use system thinking, rather than keyword-based methods. To achieve success in 2026, one needs to implement weekly audits that help maintain clean data, create campaign structures that help identify successful signals, optimize conversions from clicks, and target shoppers systematically throughout their funnel.

The process can be described by cutting waste, identifying the best practices, and scaling up accordingly. However, this is not just an advertisement slogan; it is also the operational model that characterizes profitable growth for Amazon sellers in 2026 and later years. If you have been using the same campaigns for the last three years, the algorithm has probably evolved significantly since then.