Why We Published Our Complete Ecommerce Methodology

Common Thread Collective

by Common Thread Collective

Jun. 18 2026

Every agency has opinions about how to grow ecommerce brands. Very few write those opinions down, publish them, and invite the world to judge them. CTC just did exactly that.

The Canon is a decade of ecommerce methodology codified into seven categories: technology, forecasting and modeling, marketing measurement, Meta advertising, Google advertising, email strategy, and creative strategy. It represents the collective knowledge behind how CTC operates across 170+ brands and hundreds of millions in managed ad spend.

And it's now available for anyone to read, evaluate, and scrutinize.

Why Methodology Needs to Be Written Down

Most agencies run on tribal knowledge. Strategy lives in the heads of senior employees, gets passed down through verbal explanation, and dilutes with every transition. When someone leaves, institutional knowledge walks out the door with them.

The Canon exists to solve that problem. Every operating premise, every strategic framework, every benchmark that informs how CTC deploys media and creative for its partners is documented in a single system that any team member can access and execute against.

"The brands that codify who they are will compound in value with every partner and every new hire. The ones that persist in tribal knowledge will keep losing context with every transition."

This isn't about removing the human element from agency work. It's about raising the floor so that every brand gets the benefit of aggregate learning from day one, regardless of which team member is in the seat.

How The Canon Updates Itself Through Live Testing

The Canon isn't a static document that was written once and filed away. It's a living methodology that updates in real time through testing across CTC's entire portfolio.

Every incrementality test deployed across hundreds of brands feeds back into the aggregate benchmarks. When a new result comes in for a channel like Apple Search Ads or TikTok Shops, the median, mean, and modal results for that channel update automatically. Those updated benchmarks then inform the reporting and strategy for every brand in the system.

On a monthly cadence, frontier experiments are evaluated for canonization. If a new approach to incremental attribution optimization in Meta proves out across enough accounts, it gets promoted from experimental to standard methodology. If it doesn't, it gets cut.

"If we can move from sixty to seventy-two percent success across the portfolio, it transforms the business. Strategies that work fifty-eight percent of the time versus forty-two percent of the time create enormous value over many efforts."

This is what makes codified methodology fundamentally different from individual expertise. Individual knowledge doesn't scale. Institutional methodology compounds.

Codified methodology spreading across an organization

Why the Way You Evaluate Agencies Is Changing

A brand recently evaluated CTC by checking how long a team member had been at the company on LinkedIn. The person was newer, and the brand took that as a signal that CTC couldn't effectively deliver the work.

This evaluation framework made sense in a previous era, when the quality of output depended entirely on the individual skills and institutional memory of the person in the seat. That era is ending.

When methodology is codified and deployed through structured systems and AI, the question shifts from "how experienced is this person?" to "how strong is this methodology, and how is it deployed on my behalf?"

Brands should be asking to evaluate the methodology itself. They should be scrutinizing the operating premises, reviewing the skill sets that sit on top of AI instances, and understanding the process that ensures consistency across accounts. Agencies that can't show you this work should raise a question about what, exactly, you're buying.

What Brands Should Codify About Themselves

The Canon is CTC's methodology. But brands have their own canon to build.

After the CTC Client Summit, a brand came to Taylor Holiday and shared that they'd been building a similar system for themselves. Not just a style guide with logos and fonts, but a complete codification of their institutional knowledge: product attributes, customer personas, revenue definitions, legal limitations on claims, historical test results, and strategic learnings.

This is the work that transforms how brands interact with agencies, new hires, and AI tools. Instead of weeks of tribal knowledge transfer during onboarding, imagine handing a partner a structured set of files that encode everything about your brand. Everything CTC creates gets pressed through that lens, eliminating the guesswork and subjective feedback loops that slow creative development.

The question every brand should be asking right now: what needs to be written down for your organization?

Frequently Asked Questions

What is The Canon?

The Canon is CTC's complete ecommerce methodology, codified across seven categories: technology, forecasting and modeling, marketing measurement, Meta advertising, Google advertising, email strategy, and creative strategy. It represents a decade of learning from growing 170+ ecommerce brands.

How does CTC's methodology stay current?

The Canon updates in real time. Every incrementality test deployed across CTC's portfolio feeds back into aggregate benchmarks. Frontier experiments are evaluated monthly and either promoted to standard methodology or removed. The system gets smarter with every deployed test.

Why would an agency publish its methodology?

Scrutiny from smart people improves the work. Publishing methodology invites evaluation and critique, which drives refinement. It also gives brands the ability to assess whether an agency's thinking holds up before committing to a partnership.

How should brands evaluate agencies differently now?

Instead of evaluating agencies by the tenure or LinkedIn profile of individual team members, brands should ask to see the methodology. Evaluate the operating premises, the process, and how institutional knowledge is deployed. The methodology is the product, not the person.

Ready to See the Methodology in Action?

The Canon will be live on our website soon for anyone to evaluate. If you want to see how a codified, self-updating ecommerce methodology translates into growth for your brand, let's talk.

Talk to Us


Common Thread Collective

Common Thread Collective is the leading source of strategy and insight serving DTC ecommerce businesses. From agency services to educational resources for eccomerce leaders and marketers, CTC is committed to helping you do your job better.

For more content like this, sign up for our newsletter, listen to our podcast, or follow us on YouTube or Twitter.