Google's AI Max auto-upgrade for Search campaigns is running through all of September 2026, and it's not optional. If your account still has campaign-level broad match or automatically created assets turned on, Google is converting those settings to AI Max automatically this month, and it's changing what your Google Ads reports actually show underneath. If you've got automations or dashboards reading Google Ads data, this is the week to check them, not next month.
What Actually Happened With Google Ads AI Max#
Google confirmed the phased migration back in April, then locked the September window in mid-August: Search campaigns using campaign-level broad match or automatically created assets (ACA) get auto-upgraded to AI Max between 1 and 30 September, no action required to trigger it. New legacy configurations stopped being creatable as of 3 August. Dynamic Search Ads follow a separate, later timeline, pushed out to February 2027.
Google says accounts running the full AI Max suite see "an average of 7% more conversions or conversion value at a comparable CPA or ROAS" — Google's own number, from its own beta, not an independent one. It's a bigger structural shift than the AI dashboards that landed in live accounts a couple of weeks earlier, since this one changes the campaigns themselves, not just how you view them.
At WebEpex we run Google Ads for clients across GCC, Europe, USA, Canada, and Indian SMBs, and we mapped every account against this migration window the week Google confirmed it in mid-August.
Does the AI Max Auto-Upgrade Change Anything for You?#
If you don't run Search campaigns, or you've already moved everything to AI Max or Performance Max, no. Keep scrolling. If you're running Search with broad match or ACA still switched on and haven't opted in, Google flips that switch for you sometime this month, and your reporting layer needs to be ready before it does, not after.
What Breaks in Your Reporting#
This is the part most people miss, because it isn't in the marketing copy. The API changes riding along with this rollout add new fields, and change what some old ones mean:
- A new
segments.search_term_match_sourcefield splits traffic into advertiser-provided keywords, AI Max broad match, and AI Max keywordless matches - A new
expanded_landing_page_viewreports the URL AI Max actually served, which can differ from the URL you configured - Joins keyed on your configured final URL can silently drop rows once AI Max starts expanding landing pages, with no error thrown anywhere
If your reporting pulls UTM data or groups by landing page, and that logic was built before this month, it's worth a five-minute check, not a guess. It's the same pattern we flagged when Google's /goto redirect links broke rank trackers with no warning either — the platform changes a URL format quietly, and whatever you built on top of the old one just stops matching.
How We're Handling the AI Max Migration at WebEpex#
At WebEpex we build ad reporting and lead-tracking automation on n8n for clients, most of it pulling straight from ad platform APIs into a client's own dashboard or CRM, the same discipline behind how we manage Meta ad accounts day to day. The week Google locked the September window, we went through every client automation that reads Google Ads data and flagged the ones keyed on final URL or match-type segments, since those are exactly the joins this upgrade can quietly break.
Two of those flows needed a small rewrite, swapping a configured-URL lookup for the expanded one. We made that change before the auto-upgrade window opened, not after something stopped reconciling. I'd rather catch a broken join in a test run than in a client's Monday morning report.
We're also not opting every client into AI Max early. My read is that campaign-level broad match without solid negative keyword coverage is a real risk for lead-gen accounts specifically, so we're letting Google's auto-upgrade handle the accounts where the settings are already clean, and manually reviewing the rest before the window closes.
What I'd Tell a Client This Week#
Check whether your account has campaign-level broad match or ACA switched on for Search campaigns. If it does, and you haven't opted in or out, it's getting auto-upgraded this month regardless of what you decide. Tighten your negative keyword list before that happens, not after. If nothing downstream of your Google Ads account reads landing-page URLs or match-type data automatically, you can genuinely leave this alone and let Google handle it. If something does — a spreadsheet, a dashboard, an automation — give it a look before the end of the month.
If you want a second pair of eyes on whether your own setup has a gap like this, send me what you're running and I'll tell you straight, no pitch attached. cal.com/webepex/growth-review
