Shopping Ads, explained properly.
Quick answer
Shopping ads are product-listing ads that appear on Google Search and the Shopping tab, showing image, price, and merchant name directly in the ad. For ecommerce, they are usually the most efficient form of paid acquisition because the user sees the product and price before clicking, which filters out unqualified traffic.
What are Shopping Ads?
Shopping Ads (also called Product Listing Ads or PLAs) are the visual product cards that appear at the top of Google Search results when someone searches for a product. They show the product image, name, price, store name, and review rating, giving users key purchase information before they even click. For ecommerce businesses, Shopping Ads are often the highest-performing paid channel, because users who click a Shopping ad already know the product and price and are typically close to buying.
How Shopping Ads work
Unlike Search ads where you bid on specific keywords, Shopping Ads are driven by your Google Merchant Center product feed. Google pulls data from your product catalogue, titles, descriptions, prices, and images, and decides when and where to show your products based on relevance to the search query. Instead of bidding on keywords directly, you upload your product catalogue (the product feed) to Google Merchant Center. Google reads the feed and decides which products to match to which searches based on title, description, category, and other attributes. You then create a Shopping campaign in Google Ads that bids on those products. You optimise your product feed to signal relevance, use [negative keywords](/ppc-glossary/negative-keywords) to exclude irrelevant queries, and use bidding strategies to prioritise your most valuable products.
Google Merchant Center
To run Shopping Ads you need a Google Merchant Center account with a live product feed connected to your Google Ads account. The quality of your product feed directly affects how often and for what searches your products appear. Our [PPC service](/services/ppc-packages) manages Shopping campaigns for ecommerce clients, including feed optimisation and bidding strategy.
The three pillars of Shopping ad performance
1. **Feed quality.** Title, description, image, and category are the inputs Google uses to match queries. Better feed inputs lead to better match accuracy and higher CTR. 2. **Bidding strategy.** Most modern shopping campaigns use Target ROAS or Maximise Conversion Value to optimise toward revenue rather than clicks. 3. **Negative keywords.** Even though you do not bid on keywords directly, you can exclude searches you do not want to match. Negatives are still the cleanest way to control wasted spend in shopping campaigns.
Performance Max and Shopping
Standard shopping campaigns have largely been replaced by Performance Max for most retailers. Performance Max takes the same product feed but extends reach to YouTube, Display, Discover, and Gmail in addition to Search. For most ecommerce accounts above a few thousand pounds in monthly spend, Performance Max outperforms standard Shopping campaigns; below that, standard Shopping can still be the right starting point.
Take this further
Shopping ads are usually the most efficient PPC channel for ecommerce. Most accounts have feed quality issues that are quietly capping their performance. Ready to apply this to your own site? [Book a free discovery call](/discovery-call), or explore our [PPC packages](/services/ppc-packages).
Shopping Ads: common questions.
Do I need a Merchant Center account for shopping ads?
Yes. Google Merchant Center holds your product feed and Google Ads runs campaigns against it. The two are linked. Merchant Center is free; the cost is the time to set up and maintain the feed.
How do I improve my product feed?
Three highest-leverage moves. Write product titles that match how people actually search (include brand, product type, and key attributes like colour or size). Add high-quality images that meet Google's requirements. Categorise products correctly using Google's product taxonomy. Each lifts match accuracy and click-through.
How is bidding different in shopping vs search?
You do not bid on keywords directly in shopping. You bid on products (or product groups) and let Google's algorithm decide which queries to match them to. The bidding levers are similar (Target ROAS, Maximise Conversion Value), but the targeting layer is fundamentally different.
Are shopping ads worth it for low-margin products?
Yes, when conversion rate compensates for the margin. Some categories work because high CTR plus high conversion is profitable even on tight margins. The check is to calculate target ROAS based on your margin and test whether it is achievable in the auction.
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