By Mark Stecker
You drive past a billboard on your way to work. You don’t stop the car and buy the product. Three hours later, you’re waiting for a coffee when the headline pops back into your head, so you look the brand up. Maybe it’s Google. Maybe it’s ChatGPT. Maybe it’s the search bar on Instagram. That evening, you see one of their Instagram ads. Two days later, a paid search ad appears while you’re comparing options, and by the weekend you’ve made a purchase.
Congratulations. You’ve just completed a customer journey.
Customers don’t wake up and decide to have an “Out of Home interaction”. They don’t think in channels at all. They move between moments: a billboard on the drive to work, an email in their inbox, a recommendation from a colleague, a search while they’re waiting in a queue, or an event they happen to attend. The customer journey couldn’t care less what your media plan looked like.
Let’s be real: marketers are often the only people arguing about channels. Customers are simply deciding whether your brand is worth remembering.
That’s why asking whether OOH or digital works better is a bit like arguing whether a steering wheel is more important than the brakes. They’re doing completely different jobs, but you probably wouldn’t want to drive without either.
We've Been Asking the Wrong Question
Marketing budgets have a habit of turning into tug-of-wars. One side wants bigger billboards. The other wants more paid media. The client wants to know which one “works better”, as though marketing is a winner-takes-all sport.
The reality is that customers don’t move through neatly organised funnels anymore. They jump between devices, conversations, social platforms, search engines and the real world, often within the space of a few hours.
That’s why the question isn’t where your budget should go. It’s how each channel contributes to the customer journey.
While this article focuses on OOH and digital, the same principle applies across every marketing channel. Email, PR, activations, sponsorships, events, influencers and even word of mouth all play different roles. The brands that consistently outperform aren’t trying to find one winning channel. They’re making sure they’re visible wherever their customers are already spending their time.
The strongest campaigns don’t force channels to compete. They recognise that every channel plays a different psychological role. Some create memory. Others capture intent. Others simply reinforce trust. Judging them all by the same metric is a bit like judging a goalkeeper on how many goals they score.
OOH Builds Awareness. Digital Captures Intent.
One of the biggest misconceptions about Out of Home is that it’s supposed to generate immediate sales.
Nobody drives past a billboard, pulls onto the shoulder and signs up for life insurance.
That’s not the job.
OOH builds memory.
Marketing scientist Byron Sharp argues that brands grow by increasing mental availability. Put simply, the brands that come to mind most easily when a buying moment arrives are often the brands people choose. That’s exactly where OOH excels. It builds familiarity long before customers are ready to act.
Digital steps in when curiosity becomes intent.
Someone searches your brand. Watches a product video. Reads reviews. Visits your website. Clicks a paid search advert. Downloads the app. Books the appointment.
Those moments are measurable because another channel did the heavy lifting first.
Of course, OOH and digital are only part of the picture. Every marketing channel plays a different role in the customer journey, but these two are often positioned as competing for budget when they should be working together. That’s why they’re such a useful example of a much bigger marketing principle.
Very few people move from awareness to purchase in a straight line. As we’ve explored previously, today’s customer journey is anything but linear, with people moving between devices, platforms and real-world moments before making a decision. The brands that recognise this build campaigns that support the entire journey instead of obsessing over individual touchpoints.
The Golden Thread
If OOH builds awareness and digital captures intent, something still needs to connect those moments. That’s where many campaigns quietly succeed or quietly fall apart.
Imagine driving past a billboard promoting “The fastest fibre in South Africa.” Later that day you search for the brand and the paid search ad leads with affordability. You click through to the website, only to find the homepage talking almost exclusively about award-winning customer service.
None of those messages are wrong. The problem is that they’re telling three different stories.
We call this the golden thread. It’s the central idea that runs through every touchpoint, giving customers a consistent reason to remember your brand no matter where they encounter it. The billboard introduces the story. Search reinforces it. Social adds another layer. Your website gives people the confidence to act.
Customers don’t consciously analyse whether your messaging is consistent. They simply notice when it isn’t. Every disconnected touchpoint creates friction, while every consistent interaction strengthens the memory your campaign is trying to build.
The channels don’t create consistency.
The strategy does.
Great Marketing Doesn't Pick Sides
The best campaigns don’t choose between OOH and digital because customers never have.
Email nurtures relationships. Events create experiences. PR builds credibility. None of them succeeds in isolation, and none should be measured as though it exists in a vacuum.
The brands that consistently cut through aren’t necessarily the ones with the biggest media budgets. They’re the ones that understand where their customers are already spending their time and build a golden thread that keeps their brand recognisable at every touchpoint.
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