Why One Channel Never Delivers ROI
Most marketing budgets are reviewed one channel at a time. The ads report shows its numbers, the email report shows its numbers and social shows its own, with each one asked to prove its own return.
It sounds rigorous, but in B2B it usually leads to the wrong decisions, because buyers don’t move through one channel. They move through several, over weeks or months, before they ever get in touch.
The Rule of 7
There’s an old rule of thumb in marketing that a prospect needs to encounter your message around seven times before they act.
Nobody should treat seven as an exact figure, because in some markets it’s fewer, and in long, high-value B2B sales it’s often many more. The principle still holds, though, and it’s one I build every marketing system around: one touch almost never converts, but repeated, consistent exposure across several places does.
Here’s an illustrative example of how a typical B2B buyer journey might look:
- An operations director sees a LinkedIn post about a problem she recognises.
- A week later, she receives a well-researched outbound email on the same theme.
- She searches for the issue and finds a blog article on your site.
- Over the following fortnight, a remarketing ad reminds her of you twice.
- A colleague forwards her a case study from your newsletter.
- She visits the website directly and reads the service page.
- She searches for your company name and fills in the enquiry form.
That’s seven touches across five channels, resulting in one enquiry. If you ask which channel “delivered” that lead, every answer is partly right and mostly misleading.
Touchpoint Coverage
That’s why touchpoint coverage is one of the eight areas in every marketing evaluation I run. The question is how many of the main touchpoints are active and whether they reinforce each other:
- Search, both paid and organic
- Paid social, particularly LinkedIn for B2B
- Organic social
- Email, covering both nurture and outbound
- Remarketing
- Content, including articles, guides and case studies
- Direct outreach from sales
Most SMEs I meet rely heavily on just one or two of these, usually referrals plus one paid channel, which means most prospects never reach enough touches to act.
Why Single-Channel ROI Misleads
When each channel is judged on its own, the channels that start the journey always look weak.
Content rarely produces an enquiry directly, LinkedIn posts seldom get a click that converts the same day, and remarketing ads are seen by people who were already thinking about you. Judged in isolation, each one looks like a cost with little return.
If you cut them, though, something odd happens. The channel that looked best, often branded search or direct enquiries, starts to decline too, because it was never producing that demand on its own. It was simply collecting the demand the other channels had built.
Channel Interdependence
Channels in a B2B marketing system work like stations on a production line. The final station gets the finished product out of the door, but it can’t do that without everything upstream.
Judging each station separately and closing the ones that don’t ship product directly would stop the whole line. Marketing works in exactly the same way, because the channels depend on each other, so they have to be judged together.
What Last-Click Attribution Hides
The main reason single-channel thinking persists is the way most marketing is measured.
By default, many reports use last-click attribution, which gives 100% of the credit to whatever the prospect clicked immediately before converting. In the journey above, that’s branded search, while LinkedIn, the outbound email, the article, the remarketing and the case study get nothing at all.
Last click is simple, which is why it’s popular, but it ignores the Rule of 7 entirely. It systematically over-credits the channels at the end of the journey and under-credits the ones that make the end possible.
There are better models. Position-based attribution gives credit to the first and last touches and shares the rest across the middle, while time-decay attribution gives more credit to touches closer to the conversion, which suits longer sales cycles. Neither is perfect, but both reflect how B2B buyers actually behave far better than last click does.
On Thursday, I’ll show how we set this up in practice.
Building a System, Not a Channel
The answer isn’t to spread your budget thinly across every channel available. It’s to design a system where a defined set of channels work together to get the right prospects to enough touches.
In practice, that means:
- One ideal customer profile across every channel, so you’re reaching the same people in several places.
- One core message, with each channel reinforcing the same argument so that every touch adds to the last.
- Planned sequencing, with outbound timed alongside LinkedIn activity and remarketing, so a prospect meets you in more than one place within days.
- Measurement as a system, where the primary measures are qualified opportunities and cost per qualified opportunity across the whole system, rather than each channel’s own dashboard.
- Channels judged on contribution, using a multi-touch attribution model so that early-journey channels are judged on what they actually contribute.
Single channels don’t deliver ROI, systems do. That’s the whole logic behind building outbound, landing pages, content and tracking together in Month Two, rather than launching one channel and hoping for the best.
Frequently Asked Questions
What is the Rule of 7 in marketing?
The principle that a prospect needs to encounter a message around seven times before acting.
Why does single-channel ROI mislead?
Earlier touchpoints make the final conversion possible but get no credit under last-click measurement.
Which channels make up the seven touches?
Typically search, paid social, organic social, email, remarketing, content and direct outreach.
How do I know my touchpoint coverage?
Touchpoint coverage is one of the eight areas reviewed in the AI Pipeline Audit.
How do I book the audit?
Book the £495 AI Pipeline Audit on mikeraybone.co.uk.
Book the £495 AI Pipeline Audit
If your marketing is judged channel by channel, you may be cutting the very activity that makes your best leads possible. The AI Pipeline Audit reviews touchpoint coverage and measurement together, taking 90 minutes and costing £495, which is deducted in full if you continue to the Pipeline Sprint.
