By Steve Merrill, Founder of WRKNG Digital | July 26, 2026
Plenty of Shopify brands are overpaying for Meta ads, and the fastest way to know is to check seven signals: hidden reporting, an uncapped percent-of-spend fee, ROAS-only numbers, no real cost per customer, a stale ad account, junior execution at senior prices, and no plan for AI shopping. If three or more of these are true, you're probably paying too much for too little.
I spent over $5 million of my own money on Facebook ads growing my last brand to $10 million a year. I've had a hard time watching founders get taken on this, because the signals are almost always sitting in plain sight. Here's what to look for.
1. You Only Ever See the Agency's Own Dashboard, Never Ads Manager
If you can't log into your own Meta Ads Manager and see the raw numbers, that's a problem. A pretty branded dashboard is easy to shape into whatever story the agency wants to tell. You own the ad account. You should have admin access to it, always.
2. The Fee Is a Flat Percent of Spend With No Cap
Percent of spend sounds fair until you do the math. It pays the agency to push your budget up whether or not the extra spend is profitable, which is the opposite of what you want. If you're spending $80k a month at a 15% fee, that's $12k every month, and the incentive is to spend more, not smarter.
3. Reporting Leans on ROAS and Hides Blended Numbers
Meta's in-platform ROAS is the friendliest number in the whole account. It counts view-through and clicks that would have bought anyway, so it almost always looks better than reality. The number that matters is blended: total revenue divided by total ad spend, straight out of Shopify. If your agency never shows you that, ask why.
4. Nobody Can Tell You Your Real Cost to Acquire a Customer
Your new-customer CAC is the whole game for a DTC brand, and a good agency knows it cold. If you ask what it costs to acquire a first-time buyer and you get a vague answer or a platform CPA instead, they're flying blind. Shopify's own guidance puts customer acquisition cost at the center of ecommerce math, and so should your team.
5. The Account Has 40 Ads and None of Them Are New
Meta ads fatigue fast, and fresh creative is the biggest lever on performance right now. Meta itself has said creative is the strongest driver of ad results in its business updates. If you open the account and the top spenders are all months old, you're paying a retainer for a team that stopped making things.
6. You Are Paying Agency Rates for Junior Execution
The person who sold you the deal is rarely the person in your account. That's normal. What's not normal is paying senior rates while a junior with 15 other accounts runs yours on autopilot. Ask who touches the account every week, by name, and how many other brands they carry.
7. They Have No Plan for AI and Agentic Shopping
Buying is moving into AI assistants, and more shoppers now start product research inside tools like ChatGPT and Perplexity, a shift Gartner has been flagging for a while. An agency that only knows how to buy Meta placements is running one play in a game that's changing under them. If they can't talk about agentic commerce, they're managing your past, not your future.
How to Use This List
Run your current setup against all seven signals and count the hits. One or two might be a conversation. Three or more, and it's time to renegotiate or move on, because the money you're leaving on the table compounds every single month.
FAQ
Q: How much should a Shopify brand pay an agency for Meta ads?
Fees vary, but a flat monthly retainer or a capped percent-of-spend tends to align incentives better than an uncapped percent that rewards higher spend. What matters most is whether the fee is tied to profitable growth, not just budget volume.
Q: What's the difference between ROAS and blended ROAS?
Platform ROAS is what Meta reports inside its own dashboard and it usually overstates results, while blended ROAS is total store revenue divided by total ad spend from Shopify. Blended is the honest number because it can't take credit for sales the ads didn't actually cause.
Q: Should I have access to my own Meta Ads Manager?
Yes. You should hold admin ownership of the ad account and be able to see the raw data any time, so a branded agency dashboard is never your only window into performance.
Q: Is a percent-of-spend fee a bad deal?
Not always, but an uncapped one pays the agency to grow your budget whether or not the extra spend is profitable. A cap or a flat retainer removes that conflict.
Q: How do I know if my agency is behind on AI shopping?
Ask them directly how they're preparing your store for AI assistants and agentic checkout. If they only talk about Meta and Google placements with no view on where buying is heading, they're behind.
Want a team that runs Meta profitably and builds your store for where buying is actually going? See how WRKNG Digital prepares Shopify brands for agentic commerce.
