What is Google Shopping? How it works for online stores in 2026

What Google Shopping is, for shoppers and for stores

For a shopper, Google Shopping is the product view of Google. A search for running shoes shows photos, prices, store names and ratings, and the Shopping tab lets you filter and compare offers from many stores side by side.

For a store, Google Shopping is a sales channel with two parts that share one data source:

• Google Merchant Center holds your product data. Google calls it a free tool that helps shoppers discover, explore and buy your products.
• Google Ads buys paid placement for those products through Shopping campaigns or Performance Max.

Google Shopping sends the sale to you. The shopper clicks from Google to your product page and checks out in your store, so you keep the customer, the data and the payment.

Free listings and Shopping ads

Once your products pass review in Merchant Center, they can show for free. Shopping ads add paid positions with more visibility. The two side by side:

Google Ads Help describes the ad itself: a product photo, title, price, store name and more, so the shopper sees the offer before clicking. You are charged only when someone clicks through to your landing page. What a click costs and what each product can afford, we cover under Google Shopping cost.

How Google Shopping works: feed instead of keywords

A Search ad runs on keywords you choose. A Shopping ad runs on your product data. Google reads your feed and decides which searches each product matches. That makes the feed the most important part of your setup.

According to Google's product data specification, every product needs at least these attributes:

Apparel sold in the US also needs age group, gender, color and size, and product variants need an item group ID. Add GTIN and product category wherever you have them. Two optional fields matter more than most stores think: custom_label_0 to custom_label_4, which only you see and which let you group products in Google Ads, and cost_of_goods_sold, which gives Google your product cost.

Getting started in four steps

1. 01

   Create a Merchant Center account

   Sign in with a Google Account your team keeps access to, and enter your business information. You cannot change the country later.

2. 02

   Verify and claim your website, add shipping and returns

   Verification proves the site is yours. Shipping costs and return policy must match what your checkout shows, or Google can disapprove products.

3. 03

   Upload your product feed

   Most stores use their platform's app, for example on Shopify or WooCommerce. Larger catalogs use a feed tool, a scheduled file or the Merchant API.

4. 04

   Link Google Ads and start a campaign

   Link the accounts in Merchant Center, check that conversion tracking passes the order value, then create a Standard Shopping or Performance Max campaign.

Plan the bidding path as well. Target ROAS on Shopping campaigns needs at least 15 conversions in the past 30 days, according to Google Ads Help. Start with Maximize conversion value or manual bids and switch once you have the data.

Standard Shopping, Performance Max and AI Max for Shopping

Three campaign options use your feed in 2026:

AI Max for Shopping is Google's newest option and still in beta. According to Google Ads Help it offers text customization, which adapts product titles to the search and works with English feeds only, and final URL expansion, which can send shoppers to category or editorial pages and requires Target ROAS bidding. Google says advertisers typically see about 5% more conversions or conversion value at a similar CPA or ROAS.

When Standard Shopping and Performance Max can both show the same product, the campaign with the higher Ad Rank serves. Split products between them on purpose, or your campaigns compete for the same searches.

Google Shopping in the US in 2026

The US Shopping auction changed in mid-2025. Amazon withdrew from most US Google Shopping auctions in July 2025 and, according to Tinuiti's Q2 2026 Digital Ads Benchmark Report, still held a 0% impression share against the median retailer a year later.

Other retailers got more room. In the same report, Google Shopping spend rose 18% year over year, clicks rose 19% and the cost per click fell 1%. Among advertisers running both Standard Shopping and Performance Max, Performance Max took 60% of the combined spend in Q2 2026, at a ROAS similar to Standard Shopping. For conversion rates, order values and ROAS by industry, see our Google Ads benchmarks.

Campaign structure by margin

Most setup guides end with one campaign for all products. Then a product with 60% contribution margin and one with 25% share the same ROAS target, and Google moves budget toward whatever sells the most revenue, no matter how much of it you keep.

The better setup: write each product's margin class into custom_label_0 and give each class its own campaign or listing group. Each group gets a Target ROAS derived from its margin, here with a 10% profit goal:

Budget can then run further on high-margin products while low-margin products only run when they earn money. That is how we work as a Google Shopping partner, and it is what a Google Ads agency should set up before it scales spend:

Italian premium fashion.

Google Shopping segmented by product labels

Revenue +90%. Same budget.

ROAS 2.5 → 5.5 after restructuring Google Ads and feeds

Common mistakes with Google Shopping

• Feed price differs from the product page. It often happens after a sale ends. Google disapproves the product until both match.
• Shipping costs missing or wrong. Set them in Merchant Center or in the feed, and keep them in line with checkout.
• Website not verified and claimed. Without it, your products stay blocked.
• Titles without search terms. The title decides which searches a product shows for. Put product type, brand and the key attribute first.
• Brand searches in the main campaign. Shopping ads also show on searches for your store name. Those buyers often come anyway, so separate brand from non-brand with negative keywords.
• Order value not tracked. Without values, value-based bidding optimizes toward the wrong products.