By Steve Merrill, Founder of WRKNG Digital | June 15, 2026
Ask any Shopify merchant who's worked with a marketing agency long enough and you'll hear the same complaints. Not unique complaints — the exact same ones, almost word for word. These are the six patterns that come up most consistently, what they actually signal about how agencies operate, and what to do before you sign anything.
1. "The Agency Did Great in the First 90 Days and Then Results Plateaued"
This one is almost universal. Early results spike — ROAS looks strong, traffic climbs, everything feels like it's working. Then around month three or four, growth stalls. What happened is the agency captured all the easy wins fast: the obvious keyword gaps, the underperforming ads that needed basic fixes, the low-hanging creative tests. Those wins were real. But they were also finite. After the honeymoon period, sustaining results requires genuine strategic depth — and a lot of agencies don't have it. Before you hire, ask specifically: "What does your strategy look like in months four through twelve?" If the answer is vague, that's the answer.
2. "I Could Never Get the Actual Person Working on My Account on a Call"
You sold on a senior strategist. You got an account manager relaying messages to a junior analyst you've never met. This is the standard agency staffing model and it's not a bug — it's how margins work. Senior talent closes deals. Junior talent does the execution. The gap between who you think is managing your account and who actually is can be enormous. Ask during the sales process: "Who will be doing the actual day-to-day work on my account, and can I meet them before we sign?" If they hesitate or dodge, assume the worst. Shopify's own guidance on agency selection flags this exact issue — who runs the account matters as much as who sold it.
3. "The Reporting Looked Great But My Shopify Dashboard Told a Different Story"
Agency reports can be engineered to look impressive without reflecting actual business outcomes. Attribution windows get extended. Assisted conversions get counted as direct conversions. View-through attribution inflates Facebook numbers. Meanwhile, your Shopify revenue dashboard — which doesn't care about any of that — stays flat. I've seen merchants paying $8,000/month to an agency whose entire value proposition existed only inside a custom Looker dashboard. If agency numbers and Shopify numbers don't trend together, someone is playing games with the data. Require that all reporting include Shopify native revenue data as the baseline, not as a footnote. The Shopify analytics suite is the source of truth — treat anything that contradicts it with skepticism.
4. "They Needed Me to Do Everything — I Basically Ran the Account Myself"
Some agencies operate as order-takers dressed up as partners. They need your strategy direction, your creative briefs, your copy, your ad assets, your campaign approvals on a 24-hour turnaround — and then charge you full retainer for assembling the pieces. You end up doing the strategic thinking and half the execution while they manage the platform interface. This usually becomes clear within the first month, when the onboarding questions start feeling like job interview prep for a role you didn't apply for. Ask for a clear RACI chart before you sign: who is responsible for strategy, who owns creative production, who makes final calls. If the agency wants you responsible for strategy, negotiate a lower fee or find one that actually leads. Industry benchmarks on agency-client responsibilities are worth reviewing before those conversations.
5. "Results Disappeared the Month I Paused the Relationship"
This is the one that stings most because it reveals a structural problem after you've already paid for it. When you pause or leave, everything collapses — audiences evaporate, ad performance tanks, SEO rankings slip. Why? Because the agency built campaigns on their own tooling, their own ad accounts, their own pixel data. Your store didn't own the infrastructure. You were renting someone else's engine. The right setup means your brand owns the ad account, the pixel, the audience data, the creative assets, the campaign history. Everything. If an agency resists that structure, that resistance is the answer. The FTC has clear guidance on data ownership that applies here — your data is yours, full stop. Put it in the contract.
6. "I Didn't Know the Contract Auto-Renewed Until I Saw the Charge"
Auto-renewal clauses buried in agency contracts are common. So are 60- and 90-day cancellation notice windows that reset the clock every time you miss the deadline. By the time you realize you're stuck, you're staring down another quarter of fees for a relationship you wanted to end months ago. Read the entire contract — not the summary, the actual document. Flag any auto-renewal clause and negotiate either a manual renewal requirement or a shorter cancellation window (30 days is reasonable). The FTC's negative option rule addresses auto-renewals in consumer contexts, but B2B contracts don't have the same protections. You're on your own. Treat every agency contract as adversarial until proven otherwise — because the terms were written by their lawyer, not yours.
How We Chose This List
These patterns came from direct conversations with Shopify store owners — brands ranging from $500K to $10M in annual revenue — about their real experiences working with agencies. No surveys, no sponsored research. Just the same complaints coming up again and again until the pattern was impossible to ignore.
FAQ
- How do I know if an agency is being honest about who will work on my account?
- Ask to meet the actual execution team before signing. If they won't arrange that meeting, or if the person on the sales call deflects to "our team," assume you'll be handed to someone junior. Request it in writing: name of primary account lead, their credentials, and what happens if they leave.
- What should I own before the agency relationship starts?
- Your ad account (Meta Business Manager, Google Ads), your pixel and conversion data, your email list, your creative assets. Everything campaign-related should live in accounts you control, with the agency given access as a partner — not the other way around. This is non-negotiable.
- Are 90-day contracts realistic for ecommerce agencies?
- Some agencies offer them. Most prefer longer commitments because it takes 60-90 days to see real results from most paid channels — and that's a reasonable argument. The issue isn't contract length, it's auto-renewal without clear notice and exit terms that require 60+ days warning to cancel.
- How do I spot attribution manipulation before it becomes a problem?
- Set up a simple reporting requirement from day one: agency numbers and Shopify revenue must be reconciled monthly. If there's a consistent gap — agency reports showing strong ROAS while Shopify revenue flatlines — ask specifically which attribution model they're using and why. The explanation should be immediate and clear.
- What's a fair agency fee for a Shopify store doing $2M/year?
- Expect 10-15% of managed ad spend plus a base retainer, or a flat monthly retainer in the $3,000–$8,000 range for full-service. The number isn't the problem. Getting clear on what's included — and what you'll be asked to provide yourself — is where most merchants should spend more time before signing.
If you're thinking about how AI shopping assistants are changing what customers find before they ever reach your Shopify store, that's a different problem than agency selection — and one most brands haven't started solving yet. See what AI commerce readiness actually looks like for Shopify stores.
