Updated 1 September 2026
Every platform change landing between now and September 2027 — what it actually does, what it breaks, and what to do before it arrives. Maintained as new changes are announced. Free, and no email required.
Several of these apply automatically on a fixed date whether or not anyone in your account has read the release notes. Two of them change what you pay per lead.
At a glance
| Date | Platform | Change | Severity |
|---|---|---|---|
| Sep 1–30, 2026 | AI Max auto-migration — campaign-level broad match and standalone ACA campaigns | High | |
| Sep 23, 2026 | New Smart Campaigns blocked via API | Medium | |
| Oct 1, 2026 | Local Services Ads charge for missed calls over 20 seconds during business hours | High | |
| Oct 1, 2026 | Microsoft | Max CPC removed from new non-portfolio Maximize campaigns | Medium |
| Oct 1, 2026 | Microsoft | New API features REST-only; SOAP frozen | Medium |
| Late 2026 | LSA → Performance Max pay-per-lead migration, phase 2 (service-area businesses) | High | |
| Jan 15, 2027 | Reminder notices issued to DSA advertisers | Medium | |
| Jan 31, 2027 | Microsoft | SOAP API fully deprecated — hard deadline | High |
| Feb 1–28, 2027 | DSA auto-migration to AI Max; dynamic ad groups retired afterward | High | |
| Feb 2027 | Existing call-only ads stop receiving impressions | High | |
| ~Sep 2027 | Legacy API versions sunset | Medium |
In depth
Google · September 1–30, 2026 · applies automatically
Two cohorts migrate: campaigns using the campaign-level broad match setting, and standalone automatically-created assets campaigns. AI Max is a setting on a Search campaign, not a new campaign type — structure, ad groups, keywords, budgets and bid strategies all persist.
What actually switches on. For the broad match cohort: search term matching, and nothing else. Text customization and final URL expansion are not enabled. For the ACA cohort: search term matching plus text customization. This is narrower than most coverage suggests, and worth verifying in-account rather than assuming.
What to do: mine 90 days of search terms and add negatives — the highest-value step for this cohort. Set brand exclusions and URL exclusions before matching widens. Export a 30–60 day baseline of conversions, CPA, ROAS and impression share per campaign. Then decide per campaign: accept the defaults, disable the legacy setting to exit the cohort, or upgrade manually with controls you've chosen.
Google · October 1, 2026 · applies automatically
Google begins charging for calls missed after 20 seconds during your declared business hours. For any service business where the phone is the conversion, this is a direct and immediate cost increase — paid for calls that never became conversations.
Google · late 2026 · 14 days' notice, then a 7-day reminder
The migration with the shortest runway and the most irreversible losses. Fourteen days' notice is the entire preparation window.
In depth
Microsoft · new features REST-only from October 1, 2026 · full deprecation January 31, 2027
A hard cutoff rather than a migration. Anything still calling the SOAP endpoint stops working on January 31 — bid management tools, custom reporting, feed automation, in-house scripts. The failure is silent until it isn't.
What to do: inventory every integration touching Microsoft Advertising, including tools you inherited and scripts whose author has left. Confirm each vendor's REST migration timeline in writing rather than assuming they're handling it.
Google · February 1–28, 2027 · reminder notices January 15
Dynamic Search Ads migrate to AI Max, and dynamic ad groups are retired afterward. Unlike September's migration, this cohort gets all three features active, including final URL expansion.
Final URL expansion is the one to watch. It lets Google choose landing pages beyond those you've specified — which on a site with many similar pages, or an operator running numerous near-identical local sites, produces cross-matching that's hard to detect and harder to attribute. If that describes your setup, build a URL exclusion layer before February rather than after.
Preparation
The free audit includes which of these changes affect you and on what date, alongside the measurement and wasted-spend findings. No commitment, and no call required first.
Sources: Google Ads Help and the Google Ads blog, Microsoft Advertising's API and product announcements, Search Engine Land, PPC Land, and independent performance data from Smarter Ecommerce and Brainlabs. Dates given at month precision are announced without a specific day. This page is maintained as new changes are announced — if something here has gone stale, tell me.