Google is no longer asking. Starting 1 September, eligible Search campaigns will be upgraded to AI Max for Search campaigns automatically, and advertisers are already receiving the notification emails.
The change was reported by Search Engine Land on 6 August, after being spotted by Menachem Ani of JXT Group. Google has not framed it as a migration deadline. It is one.
What was announced
Two campaign configurations trigger the automatic upgrade. Campaigns using automatically created assets will be moved to AI Max with search term matching and text customization switched on by default. Campaigns using the campaign-level broad match setting will be moved to AI Max with search term matching enabled.
Google says the rollout preserves existing campaign behaviour as closely as it can, applying AI Max settings that mirror whatever configuration the campaign already has. Nobody has to click anything.
That last part is the problem. The two trigger conditions are settings that a large share of B2B SaaS accounts already have switched on, often because somebody accepted a Google Ads recommendation eighteen months ago and never revisited it.
The upgrade paths are not equal
If your campaign qualifies through campaign-level broad match, you get search term matching. That is a meaningful expansion of query eligibility, but it is directionally consistent with what broad match was already doing to your account. You were already handing Google latitude over matching.
If your campaign qualifies through automatically created assets, you get search term matching and text customization. Text customization lets Google rewrite headline and description text based on the query it is responding to.
For an ecommerce advertiser selling running shoes, that is mostly upside. For a compliance platform selling into regulated fintech, it is a different calculation. Ad copy in B2B SaaS carries load that consumer copy does not: category naming that took a year of positioning work to settle on, pricing language that legal signed off on, integration claims that have to be accurate because a prospect will check.
Text customization does not know any of that. It knows the query.
Search term matching and your negative keyword lists
Search term matching widens the set of queries a campaign can serve against, and it does so using signals beyond your keyword list. Your negative keyword lists remain the primary instrument of control, which means their quality is about to matter more than it did last month.
Most B2B SaaS accounts have negative lists built for a narrower matching regime. They block the obvious offenders, free, jobs, salary, tutorial, and stop there. That was adequate when your keywords defined your reach. It is thinner cover once matching expands. The categories worth auditing before September are job seekers, students, competitor-brand queries you do not want to pay for, and the adjacent consumer interpretation of your category term.
Our breakdown of negative keywords and ad targeting covers the structure. If you want the underlying mechanics of how matching latitude has widened over successive Google releases, keyword match types explained is the deeper version.
What we said in May, and what changed
When google ai max appeared at Google Marketing Live in May alongside the AI Brief natural-language input, our read in the Google Marketing Live 2026 roundup was that AI Max was a Q3 test rather than a Q2 priority. Optional, worth trying on a controlled campaign, not urgent.
That advice had a shelf life of about eleven weeks.
The substance of the product has not changed. What changed is that the decision has been taken away from advertisers who qualify. A test you choose to run on one campaign with a clean control group is a different thing from a change applied across every campaign that happens to have automatically created assets enabled.
This is the second time this quarter Google has shipped a default-on change to Search campaign behaviour, following the August bidding and budgeting updates. The pattern is consistent: opt-out is replacing opt-in, and the window between announcement and effect keeps getting shorter.
What to do before 1 September
Start by finding out whether you qualify. Filter your Search campaigns for automatically created assets and for the campaign-level broad match setting. If neither appears anywhere, you are unaffected for now, though that is a temporary condition rather than a permanent one.
For campaigns that do qualify, the sequence we are running for clients is straightforward. Record a performance baseline first, at minimum cost per qualified lead and search term composition over the trailing 60 days, because you will need something to compare against when the upgrade lands and performance moves.
Then decide, deliberately, whether you want automatically created assets on at all. Turning it off before 1 September keeps text customization out of the picture and leaves you with the narrower search term matching upgrade through broad match, if that setting applies. That is a smaller change to absorb.
Finally, tighten negatives. This is the control that survives the upgrade, and it is the one most accounts have neglected.
After 1 September, check the search terms report weekly rather than monthly for the first six weeks. Query drift under a new matching regime shows up in the terms report before it shows up in your CPL, and by the time it reaches CPL you have already paid for it. A structured Google Ads audit is the right cadence for this if you are managing more than a handful of campaigns.
OneMetrik takeaway
Automation defaults are not neutral. Google optimises AI Max for its own definition of performance, which is conversion volume against whatever event you have told it to count. If that event is a form fill rather than a qualified opportunity, ai max google ads will get very good at producing form fills you do not want.
The accounts that will handle this well are the ones already feeding real pipeline signals back to Google. The accounts that will struggle are the ones optimising toward a top-of-funnel conversion event with loose negatives, because the upgrade expands reach against a target that was already pointing in the wrong direction. Our take on when to defer to Google’s automation and when to override it is in Google Ads automation.
Twenty-five days is enough time to audit two settings and rebuild a negative list. It is not enough time to fix your conversion tracking. If yours is shaky, prioritise the negatives now and the tracking straight after.
If you want a second pair of eyes on which of your campaigns qualify before the deadline, our Google Ads agency team runs a free audit that maps campaign settings against the September change. Grab a slot.