Google Ads in 2026: What Changed for Ecommerce Stores

Google Ads keeps moving your cheese. Here's the 2026 map.

In the space of a month, Google retired a campaign type, shipped a new testing toolkit for Performance Max, started closing a conversion-import path, and began experimenting with how Shopping clicks even work. Each change has a deadline or a budget consequence. Here's what changed and what to do about each.

What changed in Google Ads for ecommerce in 2026?

Four things matter most: standalone Display campaigns are being retired in favor of Demand Gen; Performance Max gained asset experiments plus a "Campaign Guidance" feature; the Google Ads API stopped accepting new adopters of offline conversion imports on June 15, 2026 (Data Manager API is the path forward); and Google is testing Shopping results that link directly to merchant sites.

Display campaigns are becoming Demand Gen

Google is sunsetting standalone Display campaigns and steering advertisers to Demand Gen, which changes both setup and reporting. If remarketing or prospecting budgets still run through classic Display, plan the migration deliberately rather than letting an auto-upgrade decide your structure: audience signals, creative formats, and placement controls don't map one-to-one. Rebuild the campaigns, run them parallel briefly, then retire Display on your own terms.

Performance Max finally gets real testing tools

PMax has long been a black box you fund on faith. The new asset experiments and "Campaign Guidance" — including an "Experiment Power" score estimating whether an experiment can reach statistical significance — are the first native tools for testing what's actually working inside it. For stores, the practical move: stop guessing which creative assets carry the campaign and run the experiment, but check the power score first so you don't burn weeks on a test your traffic volume can't resolve.

The offline conversion deadline is real

As of June 15, 2026, the Google Ads API no longer accepts new adopters of offline click conversion imports (including enhanced conversions for leads); the Data Manager API is the primary path. Existing adopters can keep running while they migrate — but if your store imports phone, ERP, or in-store conversion data through the old path, the migration belongs on this quarter's roadmap, not next year's. B2B stores with long sales cycles are the most exposed: offline conversions are usually the only signal connecting ad spend to closed revenue.

Shopping clicks may start behaving differently

Google is testing Shopping results that link directly to the retailer's site instead of opening a product-detail overlay, plus "Top pages" links in sponsored listings. Both are tests, not rollouts — but both move clicks closer to your site, which raises the stakes on landing-page speed and PDP quality. The feed work matters here too: the 2026 Merchant Center requirements (revised ToS June 15, product video serving June 30, 500×500 minimum images enforced January 31, 2027) decide eligibility before the click ever happens.

What should you do this quarter?

Migrate Display → Demand Gen deliberately — parallel-run before retiring, and re-verify exclusions and brand-safety settings post-migration.
Run one PMax asset experiment with an adequate power score before reallocating creative budget on intuition.
Move offline conversion imports to the Data Manager API if you're on the old path — existing access continues but is now legacy.
Clean the feed against the 2026 Merchant Center requirements; disapprovals are visibility outages on every surface, paid and AI alike.

Our PPC management runs on exactly this loop — feed quality first, then campaign structure, then testing — and pairs with product & category optimization so the landing pages those pricier direct clicks hit are worth the spend.

Frequently asked questions

Do I have to move my Display campaigns to Demand Gen now?

Google is retiring standalone Display in favor of Demand Gen, so the move is a when, not an if. Migrating deliberately — rebuilding audiences and creative in Demand Gen, running parallel, then retiring Display — beats waiting for a forced transition, because settings and placement controls don't map one-to-one.

What is the Experiment Power score in Performance Max?

Part of the new Campaign Guidance feature: it estimates how likely an asset experiment is to reach statistical significance given your traffic and conversion volume. Low power means the test can't produce a trustworthy answer — restructure it (longer window, bigger split, fewer variants) before spending.

What happens to offline conversion imports after June 15, 2026?

The Google Ads API stopped accepting new adopters of offline click conversion imports, including enhanced conversions for leads. Existing adopters keep working while they migrate, but the Data Manager API is now the primary path — treat the old integration as legacy and plan the move.

Do the Merchant Center 2026 changes affect paid campaigns?

Directly — the feed is the eligibility layer for Shopping and Performance Max. The revised Terms of Service took effect June 15, product video via the video link attribute serves from June 30, and the 500×500 minimum image size is enforced January 31, 2027. Items that fail these checks don't enter the auction at all.