Google Is Auto-Upgrading Your Search Campaigns to AI Max on September 1: What Ecommerce Brands Must Act On Now

On August 5, 2026, Google Ads notified advertisers that campaigns using automatically created assets or the campaign-level broad match setting will be automatically converted to AI Max for Search campaigns starting September 1, 2026. For ecommerce brands running Search campaigns with either setting active, this means query matching, ad copy generation, and landing page selection will shift to AI-driven defaults in less than four weeks, with Google reporting a 7% average lift in conversions or conversion value when the full AI Max suite is deployed.

What Does Google's AI Max Auto-Upgrade Mean for Your Search Campaigns?

AI Max for Search is Google's machine-led campaign layer that bundles three features: expanded search term matching (broader query eligibility beyond your keyword list), text customization (AI-generated headlines and descriptions), and final URL expansion (AI-selected landing pages). If your campaigns use automatically created assets, both search term matching and text customization will be enabled by default after the September 1 upgrade. If your campaigns use the campaign-level broad match setting, you get search term matching only, with text customization and URL expansion remaining off.

Which Campaigns Will Be Affected by the September 1 Auto-Upgrade?

Two specific legacy settings trigger the auto-upgrade. Any Search campaign with automatically created assets enabled will be upgraded to AI Max with search term matching and text customization active by default. Any Search campaign using the campaign-level broad match setting, which converts every keyword in that campaign to broad match, will be upgraded with search term matching on by default but without text customization or final URL expansion.

One critical distinction: this targets the campaign-level broad match toggle, not individual broad match keywords set at the ad group level. If you use broad match keywords in specific ad groups but never flipped the campaign-level setting, those ad groups are unaffected.

Dynamic Search Ads are not included in the September 1 deadline. After advertiser feedback in June 2026, Google moved the DSA auto-migration to February 2027. Only the two settings above are in scope for September.

What Are the Performance Implications for Ecommerce Brands Running Search?

Google reports that advertisers using the full AI Max suite, meaning search term matching, text customization, and final URL expansion together, see an average of 7% more conversions or conversion value at a comparable CPA or ROAS. For a brand spending $100,000 per month on Search, that kind of lift is meaningful. But 7% more conversions can also come with expanded query coverage that includes irrelevant traffic if negative keywords and match controls are not in place before the upgrade fires.

The auto-upgrade is designed to closely mirror your existing legacy setup, according to Google's August 5 notification. But closely is not the same as exactly. Search term matching in AI Max expands query eligibility based on Google's understanding of your landing pages and ad copy, not just your keyword list. Ecommerce brands with deep product catalogs or tightly structured ad groups should audit before September 1, not after.

For campaigns upgrading from automatically created assets, the more consequential shift is that text customization becomes active. This means AI-generated headlines and descriptions may serve alongside your pinned assets. If you have compliance-sensitive copy, brand-specific phrasing, or promotional language that must appear in a fixed position, verify your pinning coverage before the upgrade fires.

How Does AI Max for Search Differ From Standard Broad Match Keywords?

This is a common point of confusion. Standard broad match keywords set at the ad group level are not affected by this upgrade. AI Max for Search is layered on top of your existing keyword structure and expands query eligibility by drawing on Google's understanding of your landing pages, creative assets, and account-level signals. Traditional broad match expands based on keyword semantics. In practice, AI Max expansion behaves differently, particularly for brands with large product catalogs where page-level content signals can produce unexpected query matches.

Think of AI Max search term matching not as a replacement for keyword strategy but as an additional expansion layer that requires the same ongoing negative keyword hygiene you would apply to any broad or phrase match campaign.

What Should You Do Before September 1 to Prepare for Google's AI Max Upgrade?

1. Identify affected campaigns this week. In Google Ads, open campaign settings for each of your Search campaigns. Look for the "Automatically created assets" toggle and the "Campaign-level broad match" setting. Any campaign with either feature active will be converted on September 1.
2. Decide whether to opt in early or opt out. Google recommends switching to AI Max manually before the deadline so you can configure settings at your own pace rather than accepting defaults. If you want to avoid AI Max entirely, turn off both legacy features before September 1. Historical campaign performance data will not be affected either way.
3. Strengthen your negative keyword lists now. Search term matching in AI Max can expand query eligibility significantly. Audit your negative keyword lists at the campaign and account level, and add any brand-adjacent, category-adjacent, or competitor terms you want excluded from day one of the upgrade.
4. Review pinned asset coverage on your highest-spend campaigns. For campaigns upgrading from automatically created assets, text customization becomes active, meaning AI-generated copy may serve alongside your creative. Check your most important campaigns for pinning on critical headlines, promotional claims, or compliance language.
5. Set up performance monitoring before August 31. Create automated rules or custom alerts in Google Ads to flag significant changes in CTR, conversion rate, or CPA in the first week after September 1. Early detection allows faster intervention if expanded query coverage affects traffic quality.

How Does the September 1 Deadline Interact with Google's August 17 Bidding Changes?

There are two Google Ads deadlines running in parallel this month. On August 17, Google's changes to Target CPA and Target ROAS bidding take effect, tightening how Smart Bidding behaves in budget-limited campaigns. September 1 brings the AI Max auto-upgrades. If you are managing both, prioritize auditing your AI Max campaign eligibility this week, then review your Smart Bidding targets before August 17. Both changes will be live before Q4 begins, and their combined effect on campaign pacing and query mix could create compounding variability in early September. For more on the August 17 update, see our full breakdown of the Google Ads Target CPA and Target ROAS bidding change. You can also follow our full Google Ads 2026 update tracker for everything happening this quarter.

Frequently Asked Questions

Related Reading

• Google Ads August 2026: The Target CPA and Target ROAS Bidding Change Ecommerce Brands Must Act On
• Google AI Max for Shopping Campaigns Is Expanding: What Ecommerce Brands Need to Know Now
• Work with CTC's Google Ads Agency Team

Talk to Us

If your Search campaigns are using automatically created assets or the campaign-level broad match setting, the September 1 deadline means your AI Max transition is happening whether you configure it or not. The difference is whether you go in with the right controls in place. Talk to our team and we will help you audit your exposure, configure AI Max with the right settings, and protect your Search performance through this transition and into Q4.