Google Shopping Ads run to margin, not to revenue.
Shopping is where most retail budgets are won or quietly wasted, and the deciding factor is rarely the bid. It is the feed, the structure and the number you optimise to. We run Shopping and Performance Max to contribution margin, with your media paid straight to Google and no markup on top.
A Google Shopping Ads agency plans, builds and manages your product listing ads across Google Shopping, the Search tab and, increasingly, Performance Max. The work is less about bidding and more about the product feed: accurate titles, types, attributes and identifiers in Google Merchant Center, structured so the right products show for the right searches at a price your margins can carry. Rogue Logic runs Shopping to contribution margin rather than headline ROAS, so budget concentrates on the products and searches that actually make you money. Media is paid directly to Google, and our fee does not rise because your spend does.
Google Shopping Ads, in full.
Google Shopping is the default engine of online retail. When someone searches for a product, the carousel of images, prices and shop names at the top of the results is Shopping, and for most ecommerce accounts it carries the majority of paid revenue. It looks simple from the outside, which is exactly why so much of it is run badly. There are no keywords to write and no ad copy to agonise over, so the temptation is to upload a feed, point Performance Max at a ROAS target and leave it. That is precisely how budget leaks.
The truth of Shopping is that the product feed is the campaign. Google decides which searches your products appear for by reading the feed in Merchant Center: the title, the product type, the attributes, the identifiers and the image. Get those right and the same budget reaches better-matched, higher-intent buyers. Get them wrong and you pay to appear for searches you can never convert, while the products that would sell sit invisible. Most feeds we inherit are the retailer's raw catalogue export, never written for how people actually search.
The second failure is the number the account optimises to. A single blended ROAS target flattens every product to the same economics, so the account happily scales your lowest-margin, highest-return lines and starves the ones that pay the bills. We segment by real contribution margin, because a 5x return on a thin-margin product can lose money while a 3x on a strong-margin one prints it. Revenue is not the goal; what is left after cost of goods and media is.
Performance Max has made all of this both easier and more dangerous. It reaches more inventory and automates more of the bidding, and it is also a black box that optimises for its own reported ROAS, cheerfully spending on your brand terms and repeat customers to look good. We run it deliberately: segmented feeds, structured asset groups, brand and audience exclusions, and incrementality checks, so the automation works on demand you would not otherwise have captured. Four senior practitioners run these accounts, with no junior layer between the strategy and the spend.
Google Shopping Ads, broken down.
Merchant Center and feed foundation
A clean, compliant Merchant Center account and a feed built for search, not just for stock control. Titles rewritten around how buyers actually query, correct product types and Google categories, GTINs and identifiers fixed, and disapprovals cleared before they quietly cap your reach.
Explore →Feed optimisation and supplemental data
The ongoing work that lifts Shopping most: supplemental feeds, custom labels for margin and seasonality, image and price fixes, and structured attributes so the feed keeps matching high-intent searches as your catalogue and priorities change.
Campaign and Performance Max structure
Segmentation by margin, brand, best-sellers and new lines using custom labels and asset groups, so budget can be steered instead of averaged. Standard Shopping is kept where it earns control; Performance Max is used where it earns reach, never blindly.
Bidding to contribution margin
Target ROAS and tROAS set per product segment against real unit economics, not one blended number across the catalogue. Loss-leaders, thin-margin lines and hero products each get the treatment their maths deserves.
Brand and incrementality control
Brand traffic and existing customers separated out so Performance Max cannot claim demand you already own. We read incremental lift, not last-click ROAS, so the account scales on new customers rather than re-buying old ones.
Explore →Peak, promotions and inventory logic
Shopping lives and dies by seasonality and stock. We plan for peak, promotional pricing and sale annotations, and stop spend on out-of-stock or low-stock lines automatically, so budget never chases products you cannot ship.
The way we run Google Shopping Ads.
Audit the feed and the economics
We start in Merchant Center and in your margins. What is disapproved, mistitled or miscategorised, what each product line actually contributes after cost of goods, and where the current account is spending against that. The feed and the maths come before any bid changes.
Rebuild the feed
Titles rewritten for real search behaviour, product types and categories corrected, identifiers and images fixed, and supplemental feeds layered on with custom labels for margin, best-sellers and seasonality. This is where most of the gain is found.
Structure for control
Campaigns and asset groups segmented by margin and priority, brand traffic isolated, and Performance Max scoped so it works on incremental demand rather than harvesting your own name and repeat buyers.
Set bidding to margin
Target ROAS applied per segment against contribution, not a single blended figure, so budget concentrates on the products and searches that make money rather than the ones that merely move volume.
Prove, then scale
We start where the margin and the data are clearest, confirm the model against real contribution, then widen spend with evidence rather than optimism, holding audiences out where we need to read genuine lift.
Manage against the numbers
Weekly work on the feed, search terms, disapprovals and segment performance, with spend moved toward what earns margin and stopped on what does not. No set-and-forget, and no defending a losing line in a monthly deck.
How we approach Google Shopping Ads.
The feed is the campaign
In Shopping you do not write ads, you shape a feed and let it do the talking. Titles, product types, attributes, GTINs and images decide what you show for, so most of our work happens in Merchant Center before a bid is ever set. A clean, well-structured feed beats clever bidding on a broken one every time.
Optimised to margin, not ROAS
A blended ROAS target treats a 60% margin product and a 12% margin one as if they were the same, and they are not. We segment by real product economics and optimise to contribution, so budget flows to the lines that make money rather than the ones that merely turn over revenue.
Performance Max, kept honest
Performance Max now swallows most Shopping inventory, and its black box will happily spend on brand searches and existing customers to flatter its own numbers. We structure asset groups, feed segmentation and exclusions to keep it working on incremental demand, not taking credit for sales you already had.
No markup on your media
Your Shopping budget is paid straight to Google. Our fee is for the senior work of running the account well, and it does not scale up just because you raised spend for peak. You always know what is media and what is management.
What Google Shopping Ads puts on your desk.
Who runs your Shopping account, and how
Rogue Logic is the trading name of Bryley Ltd, a senior-led team of four practitioners with roughly forty years of combined experience. Your Shopping and Performance Max campaigns are run by an experienced operator from feed audit through to weekly optimisation, not handed to a junior once the account is won. We treat the product feed as the real lever it is, optimise to contribution margin rather than headline ROAS, and will tell you plainly when Shopping is not where your next pound is best spent.
Senior people do the work
The person who audits the feed and models the margins is the person who builds the campaigns and cuts the budget each week. No account is parked with a junior between the strategy and the spend.
Optimised to your margins
We read Shopping against contribution after cost of goods and media, segmented by product, not a single blended ROAS the platform is happy to flatter. The numbers we report are the ones your finance team recognises.
Honest about the channel
Shopping suits businesses with catalogue, margin and search demand. If your feed cannot be made competitive, or your economics cannot carry the auction, we say so rather than spend to prove a point.
Google Shopping Ads: common questions.
What does a Google Shopping Ads agency do?
A Google Shopping Ads agency sets up and runs your product listing ads across Google Shopping, the Search tab and Performance Max. The core work is the product feed in Merchant Center: titles, product types, attributes, identifiers and images that decide which searches you show for. On top of that sits campaign structure, bidding, disapproval management and reporting. We run all of it to contribution margin, with media paid directly to Google and no markup on your spend.
How much do Google Shopping Ads cost?
Your media cost is set by your products, competition and margins rather than a fixed rate, and you pay Google directly for it. What matters is contribution per pound spent, not the headline budget. We model each product line's economics first, then let spend follow the margin. Our management starts from £1,500 a month and does not rise as a percentage of your media.
Do you charge a percentage of ad spend?
No. Your Shopping budget is paid straight to Google, and our fee does not increase just because you scaled up for peak. You pay for the senior work of running the account well, not a cut of your media.
Is the product feed really more important than bidding?
For Shopping, yes. There are no keywords to bid on directly; Google reads your feed to decide which searches your products match. A well-structured feed with search-led titles, correct types and clean identifiers reaches better-matched buyers on the same budget. Most of the gain we find in a Shopping account is in the feed, not the bid strategy.
How do you handle Performance Max for Shopping?
Carefully. Performance Max now carries most Shopping inventory and automates the bidding, but it optimises to its own reported ROAS and will spend on your brand terms and existing customers to look good. We segment the feed, structure asset groups, exclude brand and repeat buyers where appropriate, and read incremental lift, so it works on new demand rather than harvesting sales you already had.
Why optimise to margin instead of ROAS?
A single ROAS target treats every product as if it had the same profitability, which it does not. Scaling a 5x return on a thin-margin line can lose money while a 3x on a strong-margin line makes it. We segment by contribution after cost of goods using custom labels, so budget concentrates on the products that are actually profitable rather than the ones that just generate revenue.
Can you fix Merchant Center disapprovals?
Yes. Disapprovals and account-level warnings quietly cap your reach and can suspend the account entirely. We audit and clear feed and policy issues, fix missing or incorrect identifiers and attributes, and keep the feed compliant on an ongoing basis so your best products are never invisible when they should be selling.
How is this different from your wider Paid programme?
It is the Shopping-specific version of it. If you also want Search, Meta, remarketing or paid placements on AI surfaces, the Paid & AI ads programme runs them together to one contribution-margin model rather than a set of disconnected dashboards.