The virtuous cycle: driving growth based on real margin, not ROAS

As a brand grows, it almost always ends up with the same structure: a service provider for paid advertising, an agency for SEO, an email marketing tool, and a separately managed Amazon account.

Everyone optimizes their own channel. Everyone has their own metrics, their own successes, and their own dashboard.

And in the midst of it all, the only question that really matters remains unanswered : does all of this actually make money?

That’s the paradox of modern marketing. We’ve never had so many levers, so much data, or so many tools. And yet, ask an executive if their growth is profitable—truly profitable—and you’ll often see them hesitate.

This article explains why this happens—and, more importantly, how to get out of it.

The Three Blind Spots of Siloed Marketing

Three factors explain why so many brands are flying blind. None of them is a moral failing. They are structural blind spots shared by the entire market, including even the best agencies.

First blind spot : the levers don't communicate with each other. Paid on one side, SEO on the other, and CRM somewhere else entirely. Everyone talks about the synergy between them, everyone seeks it, and almost no one actually delivers it. Yet that’s where the bulk of profitable growth is at stake.

Second blind spot : We’re driven by vanity metrics. One brand may post a fantastic ROAS while selling at a loss. Another may post a modest ROAS but generate solid EBITDA thanks to its cost structure. A rising ROAS accompanied by a falling margin is one of the most common pitfalls—and one of the most costly.

Third blind spot : inflated attribution. Each platform claims credit for everything. Meta says it converted X, Google says it converted Y. Add X and Y together, and you often exceed actual revenue. The same sale is claimed twice. Any decisions made based on these raw figures are compromised.

An important point to note, because it changes everything. A declining margin isn’t a cause for alarm in and of itself. Many brands deliberately lower their margins to drive volume, and that’s a perfectly legitimate choice. The real danger isn’t a declining margin. It’s a margin that’s declining without anyone knowing it, and without a plan. A brand that is unaware that its margin is shrinking is a brand in danger.

Changing Compasses: The Actual Margin

The solution to the blind spot can be summed up in one sentence : we stop judging performance based on a channel’s revenue, and instead judge it based on the business’s actual margin.

In practical terms, two figures tell the whole story, and they are accessible to any executive.

The first: current revenue compared to the annual target. This sets the pace. If we’re behind, we’re in catch-up mode. If we’re ahead, we continue to scale without slowing down, while keeping an eye on the margin.

The second factor: the margin. That's what determines whether the machine is in good working order.

But you still have to look at the right margin. Most brands focus only on revenue. The most serious ones go as far as to look at the net margin after acquisition—the margin that’s actually left over after paying for product production AND the cost of acquiring the customer. It’s this margin that should guide every acquisition decision.

And that's where the figure that sums up our approach comes in: LTM, which stands for Long-Term Margin.

Why does this change the picture? Consider a customer whose 12-month lifetime value is 500 euros. If they’ve spent 400 euros on products, their actual lifetime margin isn’t 500 euros, but 100. Acquired at a cost of 80 euros, they only yield a net margin of 20 euros. The traditional LTV metric would have led you to believe the return was much higher. LTV hides this. LTM makes it clear.

The same logic applies to advertising. ROAS measures the revenue generated per euro spent. POAS measures the profit per euro spent. When you manage campaigns based on POAS, you’re already thinking in terms of margin, not gross revenue. For channels like Google Shopping or Performance Max, this simple shift in focus realigns all decisions with what truly matters.

The End of "LTV/CAC Must Be Greater Than 3 or You're Doomed"

The market loves universal benchmarks. Minimum ROAS of 2. LTV/CAC greater than 3. Return on investment in less than 6 months. These rules are reassuring. They’re also often wrong, because they ignore each brand’s cost structure.

Here's a simple example. A sole proprietor with no fixed costs who works from home can be perfectly profitable with a margin-to-cost-of-acquisition ratio of 1.2. The margin generated goes almost entirely into profit.

The same brand, scaled up to thirty people, with offices, inventory, and logistics—at that same ratio of 1.2—would be a disaster. The margin would never cover the fixed costs.

Conclusion: There is no universal threshold. Each brand has a specific target that depends on its fixed costs, stage of maturity, and ambitions. There is no rule—only a tailored approach. And this tailored approach can only be defined based on the income statement, never on a generic benchmark.

The virtuous cycle: how each factor reinforces the others

This is where it all comes together. Profitable growth doesn't happen in just one channel. It happens through the coordination of all of them.

We start with the income statement. It dictates which products to promote. That’s where the angle comes from—that is, the need we’re addressing. The angle dictates the persona; the persona informs the creative; the creative leads to a cohesive landing page; and attribution measures the actual impact to update the income statement. The cycle closes, and it starts over, with each iteration providing more insight.

Within this circle, the various drivers reinforce one another. Here are a few concrete examples.

The CRM tells Paid how much it is allowed to charge a customer. The lifetime margin observed on the CRM, based on cohorts and retention, determines the maximum acceptable acquisition cost, which you can estimate in a matter of seconds. If the lifetime margin rises, you can acquire customers at a higher cost and accelerate growth. If it falls, you tighten the reins. This is the most powerful synergy—and the one that’s most rarely built into the system.

SEO and paid advertising complement each other. Keywords that convert in paid advertising represent high-potential search intent: we feed them into SEO so it no longer has to work blindly. Conversely, pages that rank and convert organically reveal the angles that resonate with the audience and inform ad copy. And a page that’s already performing well organically, amplified by a small advertising budget, becomes a low-risk test with high leverage.

Amazon is boosting the entire supply chain. The volume of reviews there often exceeds that on the direct website: it’s a goldmine of customer quotes for ad headlines. The top-performing keywords there indicate a clear intent to purchase, which can be leveraged in advertising. And price consistency between Amazon and the direct website prevents cannibalization of the direct channel.

The key concept to remember: A single lever, even an excellent one, has its limits. When orchestrated around margin, these same levers produce value that none of them could generate on its own.

Attribute to the truth

A circle is only meaningful if it closes properly. That is the role of attribution.

The problem, as we've seen, is that the raw figures from each platform contradict one another and are inflated. An agency that manages only a single channel has a direct interest in believing the figure that suits its purposes. A multi-channel approach doesn’t have this bias : it has no reason to attribute a sale to Meta rather than to Google; it simply needs to know what actually created the value.

To do this, we consider multiple data points rather than relying on just one. The customer’s spontaneous response at the time of purchase (“How did you discover the brand?”) is one such data point. Incremental metrics, which isolate the actual effect of a marketing lever from sales that would have occurred anyway, are another. The goal isn’t to reassure ourselves with a nice-looking number. It’s to uncover the truth, and to update the income statement with each cycle.

The Posture That Changes Everything

All of the above stems from a mindset rather than a toolkit.

We feel responsible for the client's profit margin, not just their ROAS. That’s what sets a service provider apart from a business partner.

This approach has tangible consequences. In the creative process, we retain the human element, an authentic voice, and genuine emotion, and then amplify them with AI. AI is a powerful accelerator—provided it remains invisible. A 100% AI-generated creation becomes generic and predictable, and loses its ability to move people.

It also has implications for our methodology. Our job isn't to predict what will work. It is to build the testing framework that reveals this, and then scale up the winning approach.

And it teaches us a lesson in humility. The depth of the analysis varies from brand to brand. Not all brands will provide the same level of access, and that’s to be expected—especially with major accounts, where some doors remain closed. We don’t claim to see everything. We look at what we can, connect the dots, and steer the course.

That’s what it means to us to grow a brand without sacrificing its profitability. Not just piling on channels. But making them work together, guided by a single standard.

In practice

Sophian Petitprez

CEO

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