Ecommerce Performance Marketing Agency
Rule of Growth is an ecommerce performance marketing agency that scales revenue without quietly eating your margin — every campaign judged on contribution profit, not the ROAS your ad platform reports to itself.
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Free · 24 hrsTell us your margins, current spend and targets. We'll send a costed ecommerce growth plan within one working day.
What an ecommerce performance marketing agency should own
Ecommerce has more levers than any other category — feed quality, first-order margin, repeat rate, marketplace overlap, returns. A campaign can look brilliant on a dashboard while losing money on every order. Everything below exists to stop that happening.
Google Shopping & Performance Max
Campaign structure built around margin tiers, not a single catch-all PMax that spends your budget on your worst-performing SKUs.
Product Feed Optimisation
Titles, attributes, GTINs and custom labels rebuilt so Shopping actually understands your catalogue — usually the cheapest performance gain available.
Meta & Instagram Ads
Advantage+ shopping campaigns and catalogue ads fed by a constant creative pipeline, so scaling doesn't stall the moment an angle fatigues.
Performance Creative & UGC
Statics, UGC and reels produced in-house on a testing calendar — for ecommerce, creative volume is the closest thing to a growth lever there is.
Marketplace & Quick Commerce
Amazon, Flipkart, Blinkit and Zepto ads run alongside your D2C site, measured to one blended acquisition cost instead of three competing dashboards.
CRO & Landing Page Testing
Product pages, collection pages and checkout tested systematically — a conversion-rate gain compounds across every channel you run.
Retention, Email & WhatsApp
Repeat purchase is where ecommerce margin lives. Flows, segments and win-backs that lift LTV so you can afford to pay more for the first order.
Tracking, CAPI & Attribution
Server-side events, deduplicated purchases and post-purchase surveys, so platforms optimise on real orders rather than inflated attributed ones.
Influencer & Affiliate Performance
Creators and affiliates paid against tracked orders, with codes and links reconciled into the same blended acquisition-cost model as paid media.
Contribution Margin Reporting
A dashboard showing spend, blended ROAS, new-customer CAC, returns and contribution profit per order — the sheet your finance team already works from.
Platform ROAS is not profit
We optimise to contribution margin
Reported ROAS ignores COGS, shipping, returns and payment fees. We work backwards from what's left after all of it, which is the only number that funds the business.
New-customer CAC, not blended vanity
Retargeting existing buyers flatters every dashboard. We separate new-customer acquisition cost from repeat revenue, so growth is real rather than recycled.
Creative volume decides your ceiling
Media buying is largely automated now. The brands that scale are the ones shipping new angles weekly — which is why production sits in-house, not with a vendor.
From guesswork to profitable scale in four moves
Margin & account audit
We map COGS, shipping, returns and repeat rate against your current accounts to set a target acquisition cost worth buying at.
Fix feed & tracking
Product feed cleaned, server-side events deduplicated and reporting reconciled to your order data before a rupee is reallocated.
Test creative at pace
Weekly creative and offer tests find the angles that beat your current CAC, across both prospecting and catalogue campaigns.
Scale on profit
Budget moves to combinations that hold contribution margin as volume rises, with retention lifting what you can afford to pay.
What ecommerce founders say
Our reported ROAS looked healthy while the bank balance said otherwise. They rebuilt reporting around contribution margin and we finally saw which SKUs were funding the business.
Feed optimisation alone lifted Shopping revenue before we spent a rupee more. It was the cheapest win we've had in three years of running ads.
Separating new-customer CAC from retargeting was uncomfortable but necessary. We were scaling a number that was mostly existing buyers.
Ecommerce performance marketing, answered
An ecommerce performance marketing agency plans, buys and optimises paid media against orders and profit rather than reach. In practice that means Google Shopping and PMax, Meta catalogue and prospecting campaigns, marketplace ads, product feed work, creative production, conversion-rate testing and the tracking that proves what actually drove each sale. Reporting is judged on cost per new customer and contribution margin.
Because platform ROAS counts revenue before COGS, shipping, payment fees and returns, and because attribution windows credit sales the ads may not have caused. A 4x reported ROAS can be loss-making on a low-margin SKU with a high return rate. The fix is reconciling ad data against actual order and margin data, then optimising to what's left.
There's no universal number — it's set by your gross margin. A brand with 70% margin can profit at a far lower ROAS than one at 30%. Work out your break-even ROAS from contribution margin first, then decide how much of that margin you're willing to reinvest in growth. Any agency quoting a target ROAS before seeing your margins is guessing.
Usually yes, but measured jointly. Amazon, quick commerce and your D2C site compete for the same buyer, and managing them in separate dashboards hides cannibalisation. Run them to one blended acquisition cost and the trade-offs — margin on your site versus volume on a marketplace — become a decision rather than an accident.
More than most brands produce. At meaningful spend, expect to test dozens of new assets monthly across statics, UGC and video, with only a small fraction becoming winners. That ratio is normal — the constraint isn't idea quality, it's production throughput, which is why we keep it in-house.
Enough for roughly 20 to 30 conversions per campaign per month, so the platforms can learn and tests reach significance. Below that you're paying for noise. We'll say plainly if your budget is too thin to test properly rather than take the retainer anyway.
Feed and tracking fixes often show within the first month. Creative testing compounds over months two and three, which is usually when the step-change in cost per new customer arrives. Retention work takes a full purchase cycle to show up in LTV, so it's judged over a quarter, not a fortnight.
Always. Ad accounts, pixels, feeds, analytics, creative files and dashboards stay in your name with full access throughout. If we ever part ways, nothing has to be rebuilt from scratch — a fair test of any agency you're considering.
Ready to scale on profit, not ROAS?
Get a free, no-obligation plan from an ecommerce performance marketing agency that works backwards from your margins — covering feed, creative, channels and the numbers worth reporting.