Issue · September 4, 2026
Google took the wheel on Search this week — and switched off the opt-out button.
Starting September 1, Google began automatically rewriting every Search campaign still running on campaign-level Broad Match or Automatically Created Assets. The migration to AI Max runs through September 30. There's no setting to decline it — only a choice between adjusting your account on your own terms now, or finding out later what changed while you weren't looking.
By Ged King · Sources: Search Engine Land, “Google sets AI Max migration timeline for Search campaigns” (primary) · Search Engine Roundtable, “Google Ads To Migrate Automatically Created Assets & Campaign-Level Broad Match To AI Max September 1” (primary)
Here's what happened, stripped of the platform's own softening language. If your Search campaigns still use the campaign-level Broad Match setting or a standalone Automatically Created Assets campaign, Google is migrating them to AI Max on its own calendar. Existing brand inclusions and exclusions carry over automatically, and the migrated campaigns start with search-term matching and AI text customization switched on by default. Google closed the side door on August 3, when it stopped letting anyone create a new campaign of either legacy type. September 1 through 30 is the main event: everyone still running the old structure gets moved, whether they logged in to check or not.
If this feels familiar, it should. It's the same move Google made with Universal Analytics in 2023: pick a deadline, migrate the accounts that didn't act, and let support field the confusion that shows up the following month. The difference this time is what's being migrated. Analytics tracked what happened. AI Max decides what happens — which keywords get matched, which headlines run, how the campaign gets built. You still set the budget and the goal. The model now owns more of the how than it did a month ago.
For a marketer who spent years building tight negative-keyword lists to keep broad match from wandering, that's worth sitting with. Your exclusions transfer. The model's room to interpret intent around them doesn't shrink — if anything it grows, because search-term matching and AI-written text customization are on by default in the migrated version. You didn't lose your safety rails. You lost some certainty about how far past them the algorithm is now willing to reach.
Zoom out and the pattern isn't Google's alone. Meta AI can now read straight into your Meta Ads account and your Google Workspace files and write its own performance reports. Salesforce has spent the year renaming Marketing Cloud around agents that act instead of just report. Every platform is making the same infrastructure decision at once: move control of how the campaign runs from the marketer's hands into the model's, and leave the marketer holding the goal and the invoice.
What it means If you haven't logged into Google Ads since August, do it this weekend. You may already be running campaigns you never approved in their current form — and the account rep who can tell you what changed is about to get busy.
Sept 1–30auto-migration window, no opt-out
Aug 3date Google blocked new legacy campaigns
Feb 2027when Dynamic Search Ads migration follows