Google AI Mode and AI Overviews: the UK Shopify job now

Google AI Mode has been live in UK Search since 28 July 2025, and AI Overviews now appear on 14% of shopping queries, up 5.6 times since November 2025. For a UK Shopify store the change is discovery, not checkout: in-AI purchase on Google still runs only in the US, Canada and Australia. The job now is to make your store machine-readable through a Merchant Center feed and Product, Offer and Review schema.

What is happening with Google AI Mode and AI Overviews?

Shopping answers are moving out of the blue-link list and into AI surfaces. AI Mode, Google's Gemini-powered conversational search, has appeared as a tab in UK Search and the Google app for Android and iOS since 28 July 2025, per Google's UK launch post by Hema Budaraju, Vice President of Product Management for Search.

The shopping shift is now measurable. AI Overviews reached 14.0% of shopping queries by March 2026, up 5.6 times from 2.1% in November 2025, across 20.9 million shopping keywords analysed by Visibility Labs and reported by Search Engine Land on 18 March 2026. Roughly one in seven shopping searches now returns a summarised answer above the listings, so being cited inside that answer is the new front door.

Can shoppers check out inside Google's AI in the UK yet?

No. UCP-powered checkout on Google, where a shopper buys without leaving the AI surface, runs in three countries only. Google's Merchant Center help page states the feature "only applies to products with eligibility in the United States, Canada, and Australia, and for participating merchants and partners" (Google Merchant Center Help). The United Kingdom is not on that list.

So the UK gets the discovery half first. Shoppers ask AI Mode for a product and read an answer that may cite and recommend stores, then click through to your Shopify checkout to buy. The work that earns a citation now is the same work that will support in-AI checkout when it reaches the UK, so nothing you do today is wasted.

What must a UK Shopify store do to stay discoverable?

Make the store machine-readable, because AI surfaces rank what they can parse, not what they can see. Google's product structured data guidance is direct: "Providing both structured data on web pages and a Merchant Center feed maximizes your eligibility to experiences and helps Google correctly understand and verify your data" (Google for Developers). The feed sends your catalogue to Google; the on-page schema lets Google verify and enrich each product. Prioritise these:

• Product and Offer schema with price, availability and a GTIN, in JSON-LD rather than on-screen text only.
• Review and AggregateRating data as structured markup, not a star image.
• A Merchant Center product feed kept current, with VAT-inclusive prices and accurate stock.
• Crawler access for AI bots, so GPTBot, ClaudeBot and PerplexityBot are not blocked in robots.txt.

None of this needs a theme rebuild. It is product-data hygiene, applied because a machine is now the first reader of your catalogue. For the full picture, see our guide on agentic commerce for UK Shopify stores.

Does structured data guarantee a citation?

No. Schema makes your store legible to AI surfaces; it does not make your offer the best one. A clean technical profile gets you into the running, then the surface decides on signals it weighs but you do not mark up: review volume, price, delivery speed and returns terms. That is the same boundary Shopify's free readiness scan draws, which is why a high score does not promise a recommendation, as we explained in what Shopify's agentic-readiness scanner really tests. Treat schema as the entry ticket and your product and service as what wins the citation.

Where to start

Audit one best-selling product page for Product, Offer and Review schema, then confirm your Merchant Center feed carries VAT-inclusive prices and accurate stock. That single pass does more for AI discoverability than any redesign.