Your campaigns are being upgraded to AI Max in September

Google announced on 15 April 2026 that AI Max for Search was leaving beta, and that from September campaigns using Dynamic Search Ads, automatically created assets or the campaign-level broad match setting would upgrade to it automatically. On 11 June Google amended that: Dynamic Search Ads get until February 2027, and the September date still stands for automatically created assets and campaign-level broad match.

So the flip is weeks away for a lot of accounts, and it is opt-out by inaction rather than opt-in by decision.

What AI Max actually changes

Two things. The first is matching. AI Max expands which queries a campaign can serve on, using broad match, your assets and your landing page content rather than only your keyword list. Google's framing is that it moves beyond landing page data to include broader real-time intent signals.

The second is creative. It can generate ad text and select which landing page to send a given search to.

For a business selling a well-defined thing to a wide audience, both of those tend to help. For a lead-generation business with a narrow qualified audience and an expensive sales process, both are the mechanisms by which an account quietly starts buying the wrong demand.

Google reports that advertisers using the full feature set see an average of 7 percent more conversions or conversion value at a similar cost per acquisition compared with using search term matching alone. That is the platform's own figure for its own product, with no published methodology, and it counts whatever those advertisers were counting as a conversion. It is worth knowing and it is not evidence about your account.

Why this matters more if you sell leads

Broader matching finds more queries. Whether that is good depends entirely on whether your conversion signal can tell a good lead from a bad one.

If the campaign optimizes toward form fills, wider matching will find cheaper form fills from people who were never going to buy, and the account will look like it improved. The reporting gets better while the pipeline gets worse. This is not a new failure mode, but AI Max makes it faster, because it removes the keyword list that was implicitly doing your qualification.

The order of operations is therefore the same as it always was, and it is now time-bound: fix what you count before the matching widens, not after.

What to do before September

Find out which of your campaigns are in scope. Anything running automatically created assets or the campaign-level broad match setting is on the September list.

Check what those campaigns optimize toward. If it is a raw form submission or a generic phone call, connect qualified outcomes from your CRM back to the platform first. That single change decides whether wider matching helps or hurts.

Set the controls rather than accepting the defaults. AI Max retains search term controls and negative keywords, brand controls, location of interest, text guidelines and final URL expansion. Final URL expansion in particular deserves a decision: letting Google choose the destination is fine on a deep informational site and poor on a site with one good conversion page.

Upgrade the campaigns you have decided about, ahead of the automatic date, so the transition happens on a day you are watching. Then hold the before-and-after on qualified leads rather than on conversions.

What this means for an operator

Before September, make sure every in-scope campaign is optimizing toward a qualified outcome rather than a form fill, then set final URL expansion and brand controls deliberately. Upgrade on your own schedule so you can read the change.