Marketing Funnel Masterclass: Turning Strangers Into Customers

What a marketing funnel actually is

In simple terms, a marketing funnel is the guided path that turns a person who has never heard of you into a paying customer. At the top you grab attention and make lots of people aware of you. In the middle you build interest and trust, the stage where you go from stranger to friend. At the bottom you convert that trust into action, whether that is a sign-up or a purchase.

It is called a funnel because it narrows. Many people see an ad or a piece of content, fewer engage, and only a fraction act. The goal is to design each stage intentionally so you maximise the number of people who move forward.

When I launched Sigmaschool in 2022 I had one coding course and no salespeople. I was doing around eight hours of sales calls every day, and I had become the bottleneck. I could not spend time on the product, infrastructure or team. So I built an automated funnel: ads and content to attract prospects, a landing page to capture interest, and an email, later WhatsApp, sequence to nurture and close. Waking up to enrolments that came in while I slept was a huge moment. A good funnel is like a sales team on standby 24 hours a day.

Traffic is not your problem. Conversion is

Early on I believed a common myth: if I just get more traffic, the business will grow. I learned the hard way that this is wrong. Traffic is a commodity. As marketer Sabri Suby puts it, you can walk into a traffic supermarket and buy as many visitors as you like through Facebook or Google ads in minutes.

So why was my business not exploding when I ran ads? Because the bottleneck was what happened after the click. Without the right system and offer to convert visitors profitably, more traffic was just pouring water into a leaky bucket.

That was a pivotal mindset shift. Instead of asking how to get more traffic, I started asking how to make the traffic I already have convert better. Optimise the journey first, so that when you scale traffic you are not wasting it. Ironically, once your funnel converts, buying traffic becomes the easy part.

Warm up cold traffic before you sell

Cold traffic means people who have never met you and do not trust you yet. Early on I tried to sell to them far too fast, with ads that basically said "come and join my coding course". Crickets. Who on earth was this Deric guy, and what was Sigmaschool? I had not earned any trust.

Asking a stranger to buy immediately is like proposing on a first date. So instead of pitching the paid programme to a cold lead, we invited them into our world gently: a free seven-day trial with a project a day and no credit card, plus lots of free tutorials and career guides that genuinely help before we ask for anything.

This value-first approach, often called a lead magnet, does two things. It proves you are legitimate and helpful, and it builds reciprocity and trust. Yours could be an ebook, a webinar or a mini course. Anything that solves a real pain point for your audience works. Only once people have received value do you present the paid offer. You can see our version in the free trial.

An offer so good people feel silly saying no

Here is the hard truth: even the best marketing tactics cannot save a mediocre offer. Your offer is the core of the funnel. A compelling offer is not just a low price or a long feature list. Competing on price is usually a losing game, because there is no benefit to being the second cheapest. A strong offer speaks to your customer's biggest desire and pain, and removes the barriers stopping them from buying.

We knew our audience, mostly young professionals and recent graduates, wanted good tech careers but were afraid of wasting time and money. Many had watched friends spend heavily on degrees or courses and still struggle. So we built the offer around that fear with a money-back guarantee. Rolling it out was genuinely scary. What if everyone asked for a refund? Could we deliver? But I think that fear is a sign you are on the right track. If the guarantee does not keep the founder up at night, it is probably not strong enough.

This is risk reversal: moving the risk from the customer to you. The biggest obstacle for any buyer is fear, of wasting money, being scammed or the product not working. A strong guarantee says: I know this works, and if it does not, I pay the price, not you. It also forces you to deliver, because you have skin in the game. It does not have to be a full refund. A free trial, a warranty or an outcome-based promise can all flip the risk.

Proof: can you actually deliver?

Once people are interested, the savvy buyer asks whether you can really deliver. Proof is everything that shows you are credible: testimonials, case studies, reviews, credentials, media features and your personal story.

When I started I had none of that. So I leaned on my own story: I learned to code without a CS degree, built freelance software projects and hired developers myself. Then, as students came through, we collected feedback and stories with their permission. Media coverage gave third-party credibility too, when outlets like The Edge Malaysia, BFM 89.9 and Vulcan Post covered us, and those logos went onto our site and materials.

Think about what proof you can gather. If you are new, it might be your own results or a small pilot. If you are established, use every happy customer review, endorsement and award you have.

The funnel does not end at the sale

Half the equation is what happens after someone pays. Delivering with excellence validates the trust customers placed in you, so they come back or refer friends, and it protects you from the downside of a bold guarantee. No marketing trick can save a business that does not genuinely help its customers.

For us that meant constantly improving the curriculum, bringing in strong mentors, connecting students with engineers at companies like Microsoft and Grab, and providing career support. In 2024 I stepped back to work on the business, improving people, product and process, so it could deliver without me micromanaging. If you promise the moon and deliver dust, no funnel will save you. Deliver the moon and a few stars, and happy customers become your best marketing.

Pick the funnel that fits your business

There is no one-size-fits-all funnel. Here are the common types and how we used them.

Funnel economics, from a former finance guy

I cannot resist the numbers. Cost per acquisition (CPA) is everything you spend to win one customer, divided by customers gained. Spend 1,000 ringgit on ads and get two customers, and your CPA is 500 ringgit. Average order value (AOV) is what you earn on the first purchase. Lifetime value includes upsells, repeat purchases and referrals. If AOV beats CPA, your funnel is profitable on the front end.

For a long time our front end only broke even, because we gave hefty early discounts. That was fine because delivery costs were low and lifetime value was higher. Offers where the first sale covers acquisition cost let you spend aggressively on growth without running out of cash. Once our numbers held, we went from a few hundred ringgit a week on ads to thousands a day. If you cannot afford to pay to acquire a customer, you do not really have a business, so treat marketing as an investment that expects a return.

Watch the numbers like a hawk, though. If a campaign stops performing or a landing page conversion drops, CPA shoots up, so keep testing. And scale responsibly: too fast and service quality crashes, too slow and you leave impact on the table. I aimed for steady growth each quarter, then fortified before growing again.

First principles over shiny tactics

Instead of copying competitors or following gurus blindly, I break problems down: who is my customer, what do they want, what value can I provide, and how does money flow into the business? First principles told me that in a world of abundant information, attention is scarce, so I must earn it by giving value freely. That trust is hard to gain and easy to lose, so be transparent. And that a business works when revenue sustainably exceeds cost.

When a funnel leaks, ask what your customer needs to believe and experience at each step before they buy. Maybe they need more proof that it works. Maybe they need a quick win, so you give them a free tool. Start small, get your first sales, and let each level become your new normal. This connects closely to how I grew a tech company from a $1,000 ad test. And if you want to build the products you sell yourself, start with the free trial and learn the building half of "learn to sell, learn to build".