What Is AI Max for Search, and What Happens to Your Dynamic Search Ads?

Google is retiring Dynamic Search Ads. The first wave hits in September 2026. Here is what AI Max actually is, why this matters more than most Google Ads updates, and the exact steps to get your campaigns ready before the deadline.

Dynamic Search Ads have been part of the standard Google Ads toolkit for years. They were the campaign type you leaned on when your keyword list could not cover every variation, when your product catalog changed faster than you could update ad groups, or when you wanted to catch the long-tail queries that exact match was missing. They were not perfect, but they were useful.

Google is replacing them with AI Max for Search. And unlike most Google Ads announcements that amount to cosmetic changes in the interface, this one reshapes how search campaigns fundamentally work. If you have active Dynamic Search Ads (DSAs) or campaigns using Automatically Created Assets (ACA) or campaign-level broad match, you need to understand what is coming and when.

Why Is Google Replacing DSAs?

The short version: the way people search has changed faster than DSA’s underlying technology could keep up. DSA worked by crawling your website and matching ad content to queries based on what it found on your landing pages. That worked reasonably well in a world of typed keyword phrases. It does not work as well when users are asking conversational, intent-driven questions of the kind that now make up a huge share of search traffic.

According to Google, AI Max for Search uses Gemini models to go beyond landing page data and incorporate real-time user intent signals. The goal is to connect your ads to high-value queries that a purely website-driven system would never surface. In practice, that means broader reach with better context, if you set it up correctly.

What Is the Actual Timeline?

Google initially announced this transition in April 2026, but after feedback from advertisers worried about disruption heading into the holiday period, the timeline was revised. Here is where things stand as of July 2026, according to the official Google Ads announcement and reporting by Search Engine Roundtable:

September 2026

Campaigns using Automatically Created Assets or campaign-level broad match settings will automatically upgrade to AI Max. This is the first wave and it is still on schedule.

January 2027

New DSA campaigns can no longer be created via the UI, Editor, or API. The ability to build net-new DSA campaigns ends here.

February 2027

Full auto-migration. Any active DSA campaign that has not been manually migrated will be automatically upgraded to AI Max for Search. This is when DSA officially stops existing as a campaign type.

The practical implication: if you have ACA or campaign-level broad match running today, you have roughly two months before Google makes changes for you. That is not a lot of runway, and accounts that get auto-migrated without proper guardrails in place tend to see spend patterns shift in ways that take weeks to stabilize.

How AI Max Differs from DSA

DSA crawled your website and built ads from it. AI Max does the same thing, but layers in two additional capabilities that change the scope of what gets matched and what gets written.

First, search term matching goes beyond your landing pages to incorporate real-time intent signals from across Google’s ecosystem. If someone is actively researching a problem your product solves, AI Max can match your ad to that query even if the exact phrase never appears on your site.

Second, text customization means Google’s AI generates headlines and descriptions dynamically, pulling from your site copy but adapting the message to fit the specific search context. Combined with final URL expansion, this can route users to landing pages on your site other than the one you specified, based on what Google thinks is the best match.

That is the capability that makes AI Max powerful and the same capability that can cause problems if you do not define the guardrails carefully.

What Controls Does AI Max Give You?

More than DSA ever did, which is worth acknowledging. AI Max ships with brand controls, location controls, URL exclusions, and text guidelines. Text guidelines let you specify up to 25 term exclusions and 40 messaging restrictions, so the AI cannot accidentally write copy that contradicts your legal terms, overpromises on results, or uses competitor names in your headlines.

Google has also announced that AI Briefs will eventually replace text guidelines. AI Briefs are currently in beta and available on request through your Google account strategist. They are a more structured version of the same concept: telling the AI what your brand does and does not say.

The key point is that these controls only work if you set them before the campaign runs. Auto-migrated campaigns come with default settings, not your settings.

Your Pre-Migration Checklist

Based on reporting from JumpFly and the official Google Ads documentation, here are the five things to do before September 2026 if you have any affected campaigns running.

Audit and clean up your landing pages

AI Max crawls your domain to build ad copy. Thin pages, outdated content, and broken URLs all feed directly into what the AI writes and where it sends traffic. Go through the pages most likely to receive paid traffic and make sure they clearly explain what you do, what you sell, and why someone should convert. Identify pages you want excluded from the AI’s crawl before migration.

Review Text Customization and Final URL Expansion settings

These are enabled by default when AI Max activates. Final URL Expansion in particular can redirect paid clicks to pages like your privacy policy, login screen, or return policy if you have not specified exclusions. Navigate to campaign settings before the upgrade and define exactly which URL paths are off-limits. If you turn off Text Customization, Final URL Expansion switches off automatically, so decide which approach fits your account structure before the deadline.

Set up text guidelines

Block the phrases, competitor terms, and over-promises you never want appearing in your ad copy. Categories that tend to matter most: legal language around guarantees or warranties, anything compliance-sensitive, buzzwords that clash with your brand voice, and competitor brand names. You can add these in Campaign Settings under Asset Optimization.

Build out negative keyword lists and brand controls

In an AI-driven campaign, negatives are the most important tool you have for steering spend. Apply your existing negative keyword lists to any campaign before it upgrades. Add brand exclusions if you are running non-brand campaigns and want to prevent AI Max from showing heavily on your own brand name, a known pattern with the campaign type. Add brand inclusions if you want to specifically capture branded traffic.

Set URL inclusions at the ad group level if you want more control

If you need tight control over where traffic lands without disabling AI Max entirely, turn Final URL Expansion off at the campaign level and then turn it back on at the ad group level with specific URL inclusions. This lets the AI optimize within defined paths rather than across your entire domain.

Common Mistakes to Avoid

Over-negative-matching in the first two weeks

When you audit search term reports and see queries that look loosely relevant, the instinct is to negative them immediately. Resist this. A person searching for running shoes who ends up on a page for running socks is in your target market. Cutting too aggressively early starves the algorithm of the signal it needs to optimize.

Running AI Max on accounts with poor conversion tracking

This campaign type optimizes toward the signals you give it. If your tracking is firing on spam form submissions or low-intent page views, that is what AI Max will optimize toward. Fix your tracking before the migration, not after.

Treating AI Max as set-it-and-forget-it

The first 14 days after any migration or activation require closer attention than normal. Check search terms every two to three days, watch for budget spikes on unexpected pages, and check lead quality against your CRM data before declaring the campaign stable.

What This Means Going Forward

Keywords are not going away. They are changing roles. Instead of being strict triggers that determine exactly when an ad shows, they become directional signals that help AI Max understand the intent space you want to cover. Exact match and phrase match still matter, particularly for protecting core brand terms and your highest-converting non-brand keywords. But the expectation that you can control every impression through keyword selection alone is already gone, and AI Max formalizes that reality.

The shift for agencies and in-house teams managing Google Ads campaigns is toward feeding the algorithm better inputs rather than manually mapping every query path. Clean site structure, accurate conversion tracking, well-built audience signals, and clear brand guardrails are the levers that actually move performance now. At Incisive Growth, the accounts we manage through this transition are being prepped now, not when the auto-migration notice lands.

If you have been managing DSAs as a low-attention catch-all, that approach will not transfer. AI Max has more capability but requires more deliberate configuration to use that capability well. Accounts that treat the September migration as a passive event are likely to see spend shift in ways that take a couple of months to correct.

Start the preparation now. The timeline is real and the first wave is two months away.

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