Google Ads AI Max September 2026 Upgrade: Agency Checklist

Direct answer

Starting in September 2026, Google says eligible Search campaigns using automatically created assets or the campaign-level broad-match setting will begin upgrading automatically to AI Max. Agencies should inventory affected campaigns, record current controls and generated assets, confirm landing-page and brand exclusions, and stage experiments before migration. Dynamic Search Ads follow a different timetable: their automatic upgrade now begins in February 2027.

What is changing in September 2026?

Google's updated announcement says automatic AI Max upgrades will begin in September 2026 for eligible Search campaigns using either of these legacy settings:

• automatically created assets, now called text customization; or
• the campaign-level broad-match setting.

Google says advertisers should receive an in-account notification before an automatic transition. Its published mapping says a campaign using automatically created assets will move to AI Max with search-term matching and text customization enabled by default. A campaign using the campaign-level broad-match setting will move with search-term matching enabled by default.

AI Max is not a separate campaign type. Google describes it as an optimization layer for existing Search campaigns. Its features include search-term matching and asset optimization, with related controls for brands, locations, URLs and text.

Do not treat this migration as a routine interface rename. It can change which settings an agency reviews, how generated assets are reported, and how search terms or landing pages are investigated after the transition.

Are Dynamic Search Ads moving in September too?

No, not according to Google's latest dated update and current Help Center guidance.

Google added a June 11, 2026 update to its original announcement, extending the Dynamic Search Ads sunset and automatic-upgrade start to February 2027. Current Dynamic Search Ads Help pages repeat that February 2027 date.

The lower, original portion of Google's announcement still contains older September wording about Dynamic Search Ads. For planning purposes, this article uses the newer dated update and the current Help Center pages. Agencies should still retain the account notification and recheck the Help Center before changing a specific campaign.

This distinction matters. An agency should not merge all three legacy configurations into one September work queue:

Which campaigns should an agency audit first?

Start with eligible Search campaigns that use one of the two September settings and have meaningful spend, strict brand rules, regulated copy, narrow landing-page requirements or fragile conversion measurement.

Prioritize campaigns where any of the following is true:

1. generated headlines or descriptions require legal or client approval;
2. pinned responsive-search-ad assets are part of the message hierarchy;
3. final URL expansion or URL inclusions would create material risk;
4. brand inclusions, exclusions or negative keywords protect account structure;
5. the campaign is limited by budget;
6. offline conversions, enhanced conversions or value rules need validation; or
7. a client report depends on stable before-and-after definitions.

Google notes that AI Max will not be effective when a campaign is limited by budget. Its Help Center also says responsive-search-ad pinning is not respected in some configurations involving final URL expansion or URL inclusions. These are reasons to inspect settings, not predictions that a campaign will perform better or worse.

The separate August 17 target-bidding checklist covers target CPA, target ROAS and target CPC changes. Use both checklists if a campaign is affected by both events, but preserve separate change logs so one migration does not contaminate analysis of the other.

Original artifact: AI Max migration control card

Create one card per affected campaign. Export or screenshot material settings before changing them.

This card is a control record, not a promise of incrementality. The campaign's own clean test and measurement should decide whether an optional feature remains enabled.

Should agencies upgrade before the automatic migration?

Google recommends upgrading voluntarily and offers a one-click AI Max experiment for eligible Search campaigns. An agency should still base the timing on account risk, measurement readiness and approval capacity.

A practical sequence is:

1. inventory affected campaigns and preserve the current configuration;
2. fix obvious conversion-measurement or landing-page problems;
3. define the primary business metric and guardrails before the test;
4. use an AI Max experiment where the account is eligible and the design is suitable;
5. avoid simultaneous unrelated changes to budgets, bids, ads and landing pages; and
6. record the account notification and actual migration date.

Google says its one-click AI Max experiment splits traffic 50/50 without creating a separate campaign copy. That is useful product behavior, but it does not remove the need to check statistical uncertainty, conversion lag, seasonality, brand leakage and business value.

What should the agency review after migration?

Use change history to confirm when the transition occurred. Then compare like-for-like periods while accounting for conversion lag and any concurrent changes.

Review:

• search terms, including source and match-type fields;
• generated assets and the Added by designation;
• served headline and landing-page combinations;
• final URLs and landing-page relevance;
• brand and location controls;
• negative keywords;
• spend, conversions, conversion value and lead quality; and
• any change in campaign eligibility or budget limitation.

Google's AI Max reporting guide recommends allowing at least two weeks after enabling AI Max before making changes such as adding negative keywords. That is general product guidance, not a universal instruction to ignore obvious policy, brand-safety or landing-page problems. Agencies should define an exception path for material risk.

How does public competitor-ad research fit this workflow?

Public competitor ads can help an agency understand visible messages, offers, proof, formats and creative patterns. They do not expose the private AI Max configuration behind a Google Search campaign.

Use the multi-platform ad-intelligence framework to separate observable evidence from inference. Apply the ad creative analysis rubric to classify the message and proof without calling an ad a winner. Then use the Google Ads versus Facebook Ads guide to decide how a validated angle could be tested in the appropriate channel.

Competitor research can inform a new hypothesis for text guidelines or advertiser-supplied assets. It should not be used as evidence that a competitor enabled AI Max, used a particular match type, or achieved better performance.

What can public ad data not prove?

Public ad data cannot prove a competitor's AI Max setting, search terms, keywords, exclusions, bid strategy, budget, targeting, generated-asset history, landing-page expansion rules, conversion rate, revenue, profit or incrementality. A visible ad is evidence that a creative appeared in an observed context. It is not evidence of the private campaign configuration or causal performance.

Frequently asked questions

Does every Search campaign automatically upgrade in September 2026?

No. Google's announcement refers to remaining eligible Search campaigns using the specified legacy settings. Confirm eligibility and the account notification for each campaign.

Are Dynamic Search Ads automatically upgrading in September 2026?

No, according to Google's June 11 update and current Dynamic Search Ads Help pages. Google moved the start of the DSA sunset and automatic upgrade to February 2027.

Does AI Max guarantee better results?

No. Google publishes aggregate internal benchmarks, but those figures are not a forecast for an individual advertiser. Campaign economics, measurement quality, creative, landing pages, auction conditions and implementation all affect results.

Will AI Max respect negative keywords?

Google's current FAQ says negative keywords are respected. Agencies should still export them before migration and verify their presence and observed behavior afterward.

Is this an India-only change?

Google's announcement describes a wider product transition and does not present it as India-only. Indian agencies should confirm account-level eligibility, client approval requirements and any sector-specific obligations.

Can competitor ads reveal whether another advertiser uses AI Max?

No. Public creative cannot establish the campaign's private optimization settings. Record only the message, offer, format, advertiser, source and observation date that are visible.

A restrained next step

Use the migration control card for client accounts first. If the team also needs a repeatable way to save and classify visible Meta and Google competitor evidence, the Advertisng Ad Library can support that public research layer. Keep campaign configuration evidence and competitor-ad observations separate.

Primary sources

1. Google Ads & Commerce Blog: Google's Dynamic Search Ads are upgrading to AI Max, published April 15, 2026 and updated June 11, 2026; reviewed August 13, 2026.
2. Google Ads Help: About AI Max for Search campaigns, reviewed August 13, 2026.
3. Google Ads Help: How AI Max for Search campaigns works, reviewed August 13, 2026.
4. Google Ads Help: Set up AI Max for Search campaigns, reviewed August 13, 2026.
5. Google Ads Help: About the broad match keywords campaign setting, reviewed August 13, 2026.
6. Google Ads Help: About text customization in Search campaigns, reviewed August 13, 2026.
7. Google Ads Help: About reporting in AI Max for Search campaigns, reviewed August 13, 2026.
8. Google Ads Help: About the Experiments page, reviewed August 13, 2026.
9. Google Ads Help: About targets for Dynamic Search Ads, reviewed August 13, 2026.