The Google Comparison Shopping Service (CSS) Programme allows merchants to choose a partner to display shopping ads on their behalf. Following a €2.4bn fine by the EU in 2017 for breaking competition rules, Google allowed other comparison shopping sites to place ads within the Shopping carousel. All shopping ads are displayed via a CSS; this is shown by the link at the bottom of the ad (e.g. ‘by Productaster’).
A Google Comparison Shopping Services Partner (CSS) is a price comparison website which allows users to search and compare the different prices for a product from multiple merchants.
A merchant’s products will be shown on the CSS’s price comparison website. The CSS website link will also be displayed at the bottom of any shopping ad displayed in the Google SERP. Users can navigate to the price comparison site by clicking on the ‘by Productcaster’ link.
By default, merchants will advertise via Google’s own CSS; however, switching to another partner is a straightforward process.
Productcaster is a Google CSS Premium Partner. A Premium CSS Partner is in the top 5% of Comparison Shopping Services in Europe and represents more than 500 merchants with shopping campaigns. We receive enhanced support from Google, which enables us to provide a higher service level. As a Google CSS Premium Partner, we continue to leverage our expertise to optimise product listings, drive higher conversion rates, and ensure our clients achieve maximum ROI.
All merchants must use a CSS to place Shopping ads. When using an alternative to Google’s own CSS, you’ll be able to take advantage of the cheaper CPCs (up to 20% cheaper).
Each CSS partner will have its own commercial model and benefits. At Productcaster, we pride ourselves in providing expert advice and support on all shopping related queries, be it short-term tactical options or longer-term strategic improvements. Productcaster services are provided on a small fixed monthly subscription, providing great service and big savings across your Shopping campaigns.
When comparing CSS providers, it is important to choose a partner that fits your needs.
The Google Comparison Shopping Services Programme is currently available in the following 21 countries: Belgium, Denmark, Germany, Finland, France, Greece, Hungary, Ireland, Italy, the Netherlands, Norway, Austria, Poland, Portugal, Romania, Slovakia, Spain, Czech Republic, Sweden, Switzerland and the United Kingdom.
It is important to note that while Productcaster can place ads in all relevant countries, not all CSS partners will be available in all countries.
Switching to Productcaster CSS is extremely easy. We need your Merchant Center ID to submit a switch request to Google. Converting your Merchant Center to Productcaster CSS can be instantaneous once accepting the switch request if your Merchant Center is being switched away from Google. If switching from another CSS partner, a grace period may be set by the existing CSS before the switch is complete.
Everything remains exactly the same in both your Merchant Centre and Google Ads account. The only difference is that you will see your Shopping Ads appearing as ‘By Productcaster’ and your discount will be applied if you’re migrating from Google Shopping CSS.
The charge for using Google’s own CSS is applied as a fixed-percentage margin on the cost-per-click paid in the auction – therefore the cost of using Google’s CSS is contained within the overall price you pay for your clicks.
When using an alternative CSS Partner like Productcaster, bids are cheaper due to the fixed-percentage being removed. For example, if you advertise with Google Shopping, and have a £1 bid, after the margin is removed, your bid within the auction would be £0.80; however, when using Productcaster, the full £1 bid would be entered into the auction, meaning greater efficiencies for your campaigns.
Your Google Ads support will not be affected. You will retain any Google Ads Support teams you currently work with directly and you will also still have access to the same support channels as you did before switching to a CSS partner.
As Productcaster is a Google Premium partner, we have access to additional dedicated support and engineering teams that we can leverage for you.