Google Ads Auto-Upgrades Search Campaigns to AI Max in September: What to Do

If you advertise on Google Ads, September 2026 is a month to keep an eye on your account. Between September 1 and 30, Google is automatically upgrading two kinds of Search campaigns to AI Max, its generative-AI automation bundle: those using campaign-level broad match and those using automatically created assets. The change does not ask permission — and it alters how your keywords, ads and reports work.

Quick answer: what is happening?

Google Ads is turning on AI Max automatically for Search campaigns that already use campaign-level broad match or automatically created assets. AI Max expands query matching, generates headlines and descriptions with AI, and can send clicks to URLs it deems more relevant. Advertisers who do not want the change must opt out manually or adjust the campaign before the upgrade happens.

What AI Max actually does

AI Max bundles three automations that used to be optional: search term matching (Google uses your keywords, landing pages and ads to reach queries you did not cover), text customization (AI-generated headlines and descriptions built from your site) and final URL expansion (the click may land on a different page of your domain). Google’s promise is more conversions from the same budget. In many accounts, the reality is more reach — and less control.

Which campaigns are affected

Search campaign type	Auto-upgraded?
Uses campaign-level broad match	Yes, between September 1 and 30
Uses automatically created assets (ACA)	Yes, between September 1 and 30
Phrase/exact match only, no ACA	No (for now)
Performance Max, Shopping, Display	Not applicable

What changes in reporting

With AI Max, the search terms Google finds on its own appear in a separate category, and AI-generated ads get their own rows in the asset report. If you measure performance by keyword, attribution becomes blurrier: some conversions will now come from terms none of your keywords would explain. Adjust your dashboards before comparing September with August.

Checklist: what to do now

1. Find out which campaigns will migrate

Filter Search campaigns with campaign-level broad match or automatically created assets enabled. Those change first.

2. Decide: accept, test or opt out

For accounts with plenty of conversion data, AI Max tends to perform. For small accounts, regulated brands or anyone who needs URL control, turn off AI Max or just final URL expansion in the campaign settings.

3. Protect the brand

Use brand exclusions and text controls to stop the AI from citing competitors or making claims you cannot honor.

4. Review landing pages

With URL expansion, any page on your site can receive paid clicks. Old pages without a clear offer become wasted spend.

Why this matters to you

For small and midsize businesses running tight budgets with few conversions per month, the risk is AI Max spending on overly broad terms before it learns. You do not have to reject automation — but you should enter September knowing what was switched on, with exclusions in place and a CPA comparison scheduled for two weeks out. If you work with an agency, ask for a report of migrated campaigns.

Frequently asked questions

Can I turn off AI Max in Google Ads?

Yes. In the Search campaign settings you can disable AI Max entirely or just specific components, such as final URL expansion and text customization.

When does the automatic AI Max upgrade happen?

Between September 1 and 30, 2026, for Search campaigns using campaign-level broad match or automatically created assets.

Does AI Max increase campaign costs?

It does not change your budget, but it expands reach. Without exclusions, part of the spend may go to less qualified terms, raising CPA early on.

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