AI Max is replacing Dynamic Search Ads: the D2C upgrade guide

If you run Google Search ads for a D2C brand, one of your campaign types is about to disappear. Google is retiring Dynamic Search Ads, the format that automatically targets queries based on your website content, and folding it into AI Max for Search. AI Max is not a tweak to DSA. It is a keyword-free, AI-run campaign that takes your site, your product feed and your brand rules, then goes and finds the queries, writes the ad copy and picks the landing page on its own.

This is not optional and it is not far away. Voluntary upgrades are open now, automatic upgrades begin in September 2026, and Dynamic Search Ads sunset entirely in February 2027. Google reports that campaigns using the full AI Max feature suite see an average of 7% more conversions or conversion value at a similar CPA or ROAS. That is a real number, but it comes with a real trade: you hand more of the targeting, copy and landing-page decisions to Google. This guide walks through exactly what changes, when, and how to make the switch without letting it run off the rails.

What is AI Max for Search?

AI Max for Search is Google’s next generation of Dynamic Search Ads. Like DSA, it does not run on a keyword list. Instead it reads your website and product content and matches your ads to relevant searches automatically. The difference is how much further AI Max takes that idea, and how much of the campaign it now decides for you using real-time intent signals rather than the static page-to-query mapping DSA relied on.

Three capabilities sit at the centre of it. Search-term matching widens your reach to relevant queries your keyword lists never covered. Text customisation generates headlines and descriptions tuned to the specific search, drawing on your existing assets and landing pages. Final URL expansion sends each click to the page on your site most likely to convert for that query, rather than a single fixed destination. Turn all three on and you are running what Google calls the full feature suite, which is where that 7% figure comes from.

“AI Max for Search is Google’s next generation of Dynamic Search Ads.”

What changes when Dynamic Search Ads become AI Max?

On the surface AI Max looks like a more capable DSA, and your historical settings can be carried across in the upgrade. Underneath, the balance of control shifts toward Google. DSA matched your pages to queries and you wrote the headlines; AI Max widens the query net, writes more of the copy, and chooses the landing page. For a busy D2C team that can be a genuine time-saver. It can also mean your ads start showing on searches, and sending clicks to pages, you would not have picked yourself.

The practical changes worth knowing before you upgrade:

• Targeting widens. AI Max finds queries beyond your old DSA categories and keyword themes, so impression volume and the variety of search terms both grow.
• Copy is generated. The system assembles headlines and descriptions per query from your assets and site content, so your exact wording is no longer guaranteed on every impression.
• Landing pages are chosen for you. Final URL expansion can route a click to any eligible page, not just the one you mapped, unless you constrain it.
• Reporting gets richer. AI Max surfaces the new search terms it found and the assets it used, which is where you do your steering after launch.
• Your old DSA controls survive the move. Page feeds, exclusions and URL rules port across, so an upgrade is not a rebuild from zero.

When does the DSA to AI Max upgrade actually happen?

Google has staged the retirement over roughly eight months, which gives you time to move on your own terms rather than waking up to an automatic switch. The window matters: upgrading voluntarily lets you port your settings and review them before anything goes live, while waiting for the automatic upgrade means the system makes those calls for you.

Here is the timeline to plan around. The earlier you move a campaign yourself, the more say you have over how it is configured.

Is AI Max worth turning on?

For most D2C advertisers, yes, with eyes open. The 7% average lift in conversions or conversion value at a similar CPA or ROAS is the headline, and it lands hardest for brands with a deep catalogue, rich product pages and search demand that spills well beyond a tidy keyword list. If your DSA or broad-match campaigns already drive efficient volume, AI Max is likely to find more of the same and write to it better than a static setup.

It is a weaker fit, and needs tighter reins, when your range is small, your margins are thin enough that a few irrelevant clicks hurt, or your site has pages you never want an ad pointing at (clearance, out-of-stock lines, policy and blog pages). The technology is not the deciding factor. Your catalogue depth, your data quality and how disciplined you are with the controls are what separate a 7% lift from a budget quietly leaking into the wrong queries.

How do you upgrade without losing control?

Treat the upgrade as a controlled migration, not a switch you flip across the whole account in an afternoon. The goal is to capture the upside while keeping AI Max inside the lines your brand and margins require. Run it in this order:

• Baseline first. Before you touch anything, record current CPA, ROAS, conversion volume and your top converting search terms for the campaign you plan to move. You cannot judge a 7% lift without a clean before.
• Confirm conversion tracking is solid. AI Max optimises toward whatever you tell it is a conversion. If your tracking is loose or counts low-value actions, automation will chase the wrong thing faster than a manual campaign would.
• Upgrade one campaign, not all. Pick your best-understood DSA or broad-match campaign and port it across first. Keep the rest as they are until you have read real results.
• Set brand controls before launch. Tell AI Max which brand terms to include and which to exclude, so you are not paying to appear on competitor or off-brand queries.
• Constrain the URLs. Use page inclusions and exclusions, and decide deliberately whether to allow final URL expansion. Exclude thin, out-of-stock, policy and blog pages so clicks land on pages that sell.
• Add text guidelines. Lock your brand voice, your non-negotiable claims and anything legal or compliance-sensitive, so generated copy cannot wander off-message.
• Set locations of interest and negatives. Carry your geo-targeting and negative keyword lists across, and keep adding negatives as new search terms appear.
• Let it learn, then read the search terms report. Give it two to four weeks, review the new queries and assets it chose, prune what is irrelevant, and only then compare against your baseline before rolling out wider.

What controls do you keep with AI Max?

The fear with any AI-run campaign is that it becomes a black box. AI Max is more automated than DSA, but it is not hands-off, and the controls it gives you are exactly the ones a D2C brand should care about. The job is not to resist the automation; it is to set the guardrails so the automation works in your favour.

The levers that matter, and that you should set before launch rather than after:

• Brand controls: include the brand terms you want to win and exclude the ones you do not, so spend stays on-brand.
• URL controls: page inclusions and exclusions, plus a deliberate choice on final URL expansion, so clicks only land on pages you would have chosen.
• Text guidelines: brand voice, locked claims and tone, so generated headlines stay on-message and compliant.
• Locations of interest: geo-targeting that reflects where you actually ship and serve.
• Negative keywords: still yours to manage, and still the fastest way to cut irrelevant queries the wider matching surfaces.

Where AI Max can quietly hurt a D2C brand

The same automation that delivers the lift is what creates the risk, and the failure modes are predictable. Knowing them up front is how you keep AI Max on the right side of the trade. None of these are reasons to avoid it. They are reasons to set the controls and watch the report.

The traps we see most often when a D2C account moves to AI Max without a plan:

• Query creep. Wider matching surfaces searches that look related but convert poorly. Left unchecked, a chunk of budget drifts to traffic that never buys.
• Off-brand copy. Generated headlines can soften a claim, miss a key benefit or use phrasing your brand would never sign off. Text guidelines and locked assets are the fix.
• Wrong landing pages. Final URL expansion can route high-intent clicks to a blog post, a sold-out line or a generic collection instead of the page built to convert. Exclude the pages that should never receive an ad.
• Cannibalised brand search. Without brand controls, AI Max can bid into your own brand terms and take credit for traffic you would have won for free.
• Hidden in a blended report. Because AI Max blends queries, assets and pages, a poor pocket of performance can hide inside a healthy average. Segment the search terms report so you can see it.

What AI Max means for your D2C brand

Strip away the branding and AI Max is a clear signal of where Google is taking Search advertising: less manual keyword and copy management, more of the campaign decided by AI from your website, your feed and your rules. Dynamic Search Ads were the first step down that road. AI Max is the next, and Performance Max and AI Max for Shopping sit alongside it as the same idea applied to your whole catalogue. Fighting the direction is a losing game. The win is in feeding the machine well and steering it deliberately.

That is the part most brands underestimate. When Google decides which queries to chase, what your ad says and where the click lands, the quality of your inputs becomes the whole game. Clean conversion tracking, a well-structured site, accurate product data, tight brand and URL controls and a disciplined weekly review are what turn AI Max’s 7% from a Google statistic into a number that shows up in your account. The automation is the same for everyone. The inputs and the discipline are your edge.

Move before the upgrade moves you

The brands that come out of this transition ahead are the ones that treat the next few months as a window, not a deadline. Upgrade a campaign on your terms, set the guardrails, read the search terms report, and learn how AI Max behaves on your account while the stakes are low. Do that, and the September auto-upgrade is a non-event because you have already done it properly. Skip it, and Google sets your defaults for you.

This is the kind of change that rewards brands with someone watching the account closely and punishes the ones who set and forget. Getting the controls right, reading the reports and steering the automation week to week is exactly the work that decides whether AI Max lifts your numbers or leaks your budget.