Google Ads AI Max Is Changing in September 2026: What Advertisers Should Check Now

September 2026 is an important month for Google Search advertisers. Google says eligible Search campaigns using automatically created assets and the campaign-level broad match setting will begin upgrading to AI Max. Dynamic Search Ads have a longer runway, with Google’s updated timeline pushing their sunset and automatic transition into 2027.

The practical takeaway is simple: do not wait for an account notification to understand what AI Max will change.

What is actually changing in September?

AI Max for Search campaigns combines several automation capabilities, including expanded search-term matching, text customization and final URL expansion.

Google originally announced a broader September transition, but later extended the Dynamic Search Ads timeline. As of Google’s updated guidance, automatically created assets and campaign-level broad match remain scheduled for automatic AI Max upgrades beginning in September 2026, while the DSA sunset and auto-upgrade are expected to begin in February 2027.

This distinction matters because headlines that simply say “DSA is disappearing in September” are no longer accurate.

Why Google is pushing AI Max

Search behavior is becoming less predictable as people use longer queries, conversational search and AI-powered search experiences. Google wants its advertising system to find relevant demand without requiring advertisers to manually anticipate every keyword.

Google reports that advertisers using the full AI Max feature suite have seen an average 7% increase in conversions or conversion value at a similar CPA or ROAS compared with using search-term matching alone. That is Google’s aggregate result, not a guarantee for an individual account.

What advertisers should audit before the transition

1. Conversion quality

More automated matching is only useful if Google is optimizing toward outcomes that matter. Check primary conversion actions, duplicate tracking, lead quality and offline conversion feedback before expanding automation.

Related: Which Marketing Actions Should Count as Conversions?

2. Search terms

Review what the account is already matching to. Look for patterns of irrelevant intent rather than reacting to isolated queries.

Related: How to Review Google Ads Search Terms Without Overcorrecting

3. Landing-page eligibility

Final URL expansion gives Google’s system more freedom to choose where traffic lands. Make sure the pages Google can discover are accurate, conversion-ready and appropriate for paid traffic.

4. Brand and location controls

If your strategy depends on tight brand or geographic guardrails, document the existing configuration before changing anything. Google has continued adding controls and experiment options around AI Max, which makes testing preferable to guessing.

5. Text assets

Automation can assemble and customize messaging, but it still needs strong source material. Review claims, offers, differentiators and compliance-sensitive language.

Use experiments instead of making AI Max a belief system

The wrong question is whether AI Max is “good” or “bad.” Performance depends on the account, data quality, business model and controls.

Google announced additional AI Max experiment capabilities that let advertisers test budgets and ROI targets across multiple Search campaigns and test while preserving certain brand and location settings.

Use those tools to answer a business question: does giving the system additional flexibility produce more profitable incremental conversions?

Do not confuse automation with strategy

AI Max can decide how to match demand and assemble ads more dynamically. It cannot decide what a qualified lead is worth, which customer segments deserve investment, whether sales can handle additional volume or whether a low CPA is masking poor lead quality.

Those decisions remain outside the bidding system.

That is why the strongest preparation for AI Max is not simply enabling more AI. It is improving the information the AI receives and the controls surrounding it.

Frequently asked questions

Is Google eliminating Dynamic Search Ads in September 2026?

No. Google updated its timeline and says the DSA sunset and automatic upgrade will begin in February 2027. Other eligible legacy features, including automatically created assets and campaign-level broad match settings, continue to transition beginning in September 2026.

Should I turn on AI Max before Google upgrades my campaigns?

Testing before an automatic transition can give you more time to understand the controls and performance impact. Whether you should enable the full feature set depends on your conversion data, search intent and account requirements.

Does AI Max replace keywords?

No. AI Max expands Google’s ability to find relevant queries around your existing Search strategy, but advertisers still need to manage intent, measurement, exclusions and business goals.

Sources

Google Ads & Commerce Blog: We’re upgrading Dynamic Search Ads to AI Max. https://blog.google/products/ads-commerce/dsa-upgrade-to-ai-max-2026/

Google Ads & Commerce Blog: Make AI Max work for your business with new testing and planning tools. https://blog.google/products/ads-commerce/ai-max-testing-planning-tools/

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