How Helios Marketing rebuilt GA4 tracking across 14 client accounts in six weeks

Who they are

Helios Marketing is a 22-person digital marketing agency in Austin, Texas. They run paid search, paid social, and SEO for mid-market B2C brands. Average client relationship is eighteen months, average client ad spend is $75K/month.

The problem

Helios came to us in January 2026 with a familiar story. Every new client arrived with a different GA4 setup — some inherited from previous agencies, some stitched together from Shopify defaults, a few from freelancers who'd moved on. Their account managers were spending three to four hours per week per client just reconciling numbers between GA4, Google Ads, and Meta. Attribution reporting was educated guesswork.

The breaking point was a quarterly review where two account managers presented different revenue figures for the same client — one from GA4, one from Shopify — and couldn't explain the gap. The founder called us the following week.

What we shipped

Over six weeks, Anlyto delivered a unified tracking spec across Helios's entire book of business. Everything went out under Helios's brand — dashboards, documentation, client-facing QA reports, the whole lot.

Week 1 — Audit

We audited all fourteen client accounts in parallel. Output: a prioritised fix list per account, plus a cross-portfolio pattern document identifying the five recurring issues (duplicate purchase events, missing enhanced conversions, broken consent-mode, inconsistent UTM taxonomy, orphaned dataLayer events).

Weeks 2–3 — Shared tracking spec

Rather than rebuilding each account independently, we wrote a single canonical tracking spec — event names, parameters, user properties, conversion definitions — that every future Helios client would inherit. This alone changed the economics of the relationship: onboarding a fifteenth client now takes a day, not a week.

Weeks 3–5 — Rebuilds

We rebuilt all fourteen containers in GTM, migrated GA4 properties to the new spec, configured consent-mode v2 across the portfolio, and synced conversions back to Google Ads and Meta with enhanced + offline uploads. Each account got its own QA doc — dev, staging, and prod sign-off — before we marked it done.

Week 6 — Hand-off

We ran two training sessions for Helios's account managers, delivered a documented tracking plan per client, and set up a shared Linear board for ongoing ticket intake. Helios's retainer with us is now thirty hours a month — roughly one day a week of analytics work they can schedule against.

The numbers

Three months in:

• Attribution drift dropped 62% — the gap between GA4 and Shopify reporting narrowed from an average 14% to an average 5% across the portfolio.
• 18 hours/week reclaimed per account manager. Most of it went into new-client pitching — Helios closed three new retainers in the three months after we shipped.
• 100% of the portfolio is now on a single tracking spec. New clients onboard with a known-good starting point instead of a bespoke investigation.

In their words

"We used to treat analytics like plumbing — necessary, invisible until it broke. Now it's a selling point. We walk into pitches with a clean tracking demo and a story about how we measure. Two of our last three wins came from that moment."

— Dana Park, COO, Helios Marketing

What we'd do differently

The only thing we'd change: we front-loaded the audit too hard. With hindsight we'd have shipped the shared spec in week two and let the rebuilds follow a week later — a couple of Helios's accounts had new client launches mid-rebuild, and we had to juggle freeze windows. Lesson filed.

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