Platform specialisation matters in exactly four places: product feed structure, checkout behaviour, Klaviyo integration, and ecommerce attribution. Outside those, a strong generalist agency will serve you fine — and often better than a mediocre specialist.
"Shopify specialist" is also an easy label to claim. Here's what it should actually mean and how to test it in one email.
Where platform knowledge changes the outcome
| Area | What a specialist knows | What it costs when they don't |
|---|---|---|
| Product feed | Shopify's default titles are built for your storefront, not for Google Shopping | Feed-driven campaigns underperform for months with no obvious cause |
| Checkout | Where Shopify's checkout leaks, what's editable, what isn't | Blaming ads for a drop-off happening after add-to-cart |
| Klaviyo integration | How flows, segments and paid audiences actually connect | Retention and paid run as separate systems that don't compound |
| Attribution | How Shopify's reporting differs from platform-reported ROAS | Optimising toward a number that doesn't match the bank |
The feed one is the clearest. A home goods brand running Google Shopping at 1.8 ROAS had product titles straight out of their Shopify defaults. One title rewrite across six products took ROAS to 3.4 in three weeks — we wrote it up here. A generalist agency running the same campaign structure would have optimised bids for months and never touched the actual cause.
The attribution one is the most expensive. Platform-reported ROAS is consistently generous, and if nobody reconciles it against Shopify you can run a "profitable" account into the ground. One brand had a $31,000/month gap between what Google Ads reported and what Shopify did — the mechanics are in what your Google Ads attribution is hiding.
Where specialisation doesn't matter much
Being honest about the limits of our own category:
- Core media buying skill. Meta's auction works the same whether you sell on Shopify, WooCommerce or your own stack. A great buyer is a great buyer.
- Creative strategy. What stops a scroll isn't platform-specific.
- Offer and positioning. Same discipline everywhere.
So if an agency is excellent at media buying and creative but calls itself a generalist, don't rule them out. Ask them the four questions below instead.
Four questions that test it in one email
Send these to any agency claiming Shopify expertise. The answers separate real experience from a landing page headline.
- "How do you handle product titles in our Shopify feed for Google Shopping?"
Good answer names the gap between storefront titles and search-intent titles. Weak answer talks about bidding.
- "How do you reconcile platform-reported ROAS with Shopify's revenue reporting?"
Good answer describes a specific process and expects a gap. Weak answer says they'll use the platform number.
- "What's your read on Shopify's checkout — what can we change, what can't we?"
Good answer knows what's editable at your Shopify plan and where drop-off typically happens. Weak answer treats checkout as somebody else's problem.
- "How do you use Klaviyo segments in paid audiences?"
Good answer describes specific segments — high-LTV buyers, lapsed purchasers — feeding paid. Weak answer treats email and paid as separate.
An agency that answers all four concretely knows the platform, whatever they call themselves. One that deflects on three of four doesn't, whatever their homepage says.
The trade-off nobody mentions
Specialists have a real weakness: a narrow playbook. An agency that has run the same Shopify motion 200 times is fast and reliable — and sometimes applies the motion when your situation needs something else.
Generalists see more variety across platforms and categories, which occasionally produces better lateral thinking.
The practical answer: hire for the constraint you actually have. If your feed, checkout and attribution are a mess, hire the specialist. If your creative is the problem, hire whoever makes the best creative.
Where we sit
We're 100% Shopify-focused, across 15+ brands and $2M+ in managed ad spend. That's a deliberate narrowing, and it comes with the weakness above — if you're on a different platform, we're the wrong call and we'll say so.
What the focus buys is that the four areas in that table are the first places we look, not things we discover in month three. A pet products brand had $12,000/month in wasted spend that showed up in that kind of review, not in the ROAS dashboard.
What to do today
Send the four questions to whoever runs your ads now — agency, freelancer or in-house.
If you get four concrete answers, your platform knowledge is covered and your problem is elsewhere. If you get three deflections, you've found something worth fixing that has nothing to do with your ad budget.
If you'd like us to run that review instead, book a 20-minute call. $2,000/month, published, and we'll tell you what we'd fix first before you pay anything.