Your Customers Have a Dozen Reasons to Buy. Your Marketing Only Answers One.

Ask a scaffolding company what they do. "We provide scaffolding hire and sales." Ask a plumber. "We fix leaks and do renovations." Ask a signage company. "We make signs."

Now ask their customers why they called.

One needed scaffolding because a building inspector flagged a safety violation and gave them 14 days. Another was planning a house extension and their builder told them to organise access. A third was a project manager on a government tender who needed proof of compliant scaffolding partners before the submission deadline.

Same category. Same service. Three completely different reasons to pick up the phone. Three different emotional states. Three different urgency levels. Three different things they typed into Google.

The scaffolding company's Google Ads? One campaign. One message. "Scaffolding Hire Adelaide."

This is the growth ceiling that almost every SME hits without realising it. Not a budget problem. Not a creative problem. A coverage problem.

The One-Door Business

Most small businesses market themselves through a single lens: what they sell. Their website describes the service. Their Google Ads target the obvious keyword. Their social media repeats the same message.

The problem isn't that the message is wrong. It's that it only covers one of the many situations that trigger someone to need you.

The Ehrenberg-Bass Institute, the world's largest centre for research into marketing, calls these triggers Category Entry Points (CEPs). They're the needs, occasions, motivations, and situations that cause someone to think about a product or service category, and the brands within it.

Here's the part that should change how you think about your marketing: research from the Ehrenberg-Bass Institute demonstrates a direct correlation between the number of CEPs a brand is linked to and its market share. Brands with the highest Mental Share typically have a market share 2x larger than their nearest competitor.

Yet a 2026 study by Hearts & Science found that only 16% of brands are actively using Category Entry Points in their marketing planning. For SMEs, that number is almost certainly lower.

You're running a one-door business in a market where customers come from a dozen different directions.

What Actually Triggers a Purchase

Professor Jenni Romaniuk, Associate Director of the Ehrenberg-Bass Institute, developed the 7W Framework to systematically map every way a customer enters your category. It asks seven questions that have nothing to do with your product and everything to do with your buyer's life:

When you map these out for your own business, something becomes immediately obvious. Your customers enter the buying situation from wildly different starting points. But your marketing probably only addresses one or two of them.

The plumber's website says "plumbing services." The customer's Google search says "insurance won't cover water damage what do I do now." Those are two completely different entry points. One is a category description. The other is a buying situation. Your marketing needs to be present in the second one.

Why Your Brain Picks the First Business That Comes to Mind

Daniel Kahneman's research on System 1 thinking, outlined in Thinking, Fast and Slow, explains why category entry points matter so much.

Most buying decisions, especially for service businesses, aren't made through careful deliberation. They're made on autopilot. System 1 thinking is fast, instinctive, and emotional. When a buying situation arises ("the roof is leaking", "the inspector is coming next week", "we need signage for the new office"), your brain doesn't evaluate all possible suppliers. It reaches for the first brand that comes to mind.

This is exactly what Byron Sharp means by mental availability: the probability that a buyer will notice, recognise, or think of your brand in a buying situation. It's not awareness ("have you heard of us?"). It's retrieval ("do you come to mind when I need someone like you?"). Awareness is binary. Mental availability is multidimensional. It varies across situations.

Rory Sutherland adds another critical layer in Alchemy. He argues that most people aren't trying to find the best option. They're satisficing: looking for the first option that seems good enough while avoiding a catastrophe. "We weren't trying to buy the best car. We were trying to avoid buying a terrible car."

Put those three ideas together and the implication is stark:

• Customers don't deliberate. They grab the first name that surfaces. (Kahneman)
• The name that surfaces depends on how many buying situations you're linked to in their memory. (Sharp/Romaniuk)
• They're not looking for the best. They're looking for the first one that feels safe. (Sutherland)

We've written before about why 95% of your future customers aren't Googling you right now. Category entry points explain exactly what those 95% are doing: living their lives until a specific situation triggers a need. The question is whether your brand is linked to that trigger in their memory.

The Numbers Behind the Doors

This isn't just theory. The Ehrenberg-Bass Institute tested the CEP-to-market-share relationship across dozens of categories and geographies.

In the US insurance sector, regression modelling across 17 products found that each additional category entry point a customer links to a brand in their memory lowers the probability of defection by 5%. That relationship was statistically significant in 16 of 17 product categories (p<0.05).

Think about what that means for a service business. If a customer associates you with three buying situations instead of one, they're roughly 10% less likely to switch to a competitor. Not because your service improved. Because you occupy more mental real estate.

Les Binet and Peter Field's analysis of 996 IPA effectiveness campaigns across 700 brands and 83 sectors reinforces this from the budget side: broad reach campaigns that connect with many different buying situations consistently outperform narrow, tightly targeted campaigns for driving market share growth. Their advice is direct: go for reach rather than frequency. Cover more situations rather than hammering the same one harder.

There's also evidence hiding in your Google Ads data. Recent analysis shows a dramatic shift in how people search. The share of conversions from 1-2 word queries (like "scaffolding Adelaide") dropped from 62% to 52%, while 3-4 word queries jumped from 20% to 46% of conversions. Customers are getting more specific about their entry points. "Scaffolding hire" is being replaced by "scaffolding for house renovation" and "compliant scaffolding hire government project." Each of those is a different CEP. If your campaigns only cover the head term, you're missing the fastest-growing segment of buying intent.

This connects directly to how your Google Ads campaign is doing two jobs. One is capturing the demand you already know about. The other is being present across the range of situations your customers are actually in.

The One-Message Trap Across Every Channel

Here's what the one-message trap looks like in practice, and what it looks like to break out of it:

This is also why your organic content is your best ad. Every blog post that addresses a specific buying situation is another door into your business. A plumber who writes about "what to do when your insurance rejects a water damage claim" is linking their brand to a high-emotion CEP that their competitors' generic "plumbing services" page completely misses.

What This Means for Your Business

The practical application is simpler than you might expect.

The businesses that grow aren't the ones with the biggest budgets or the cleverest ads. They're the ones that show up in the most buying situations. They've built mental availability not through louder marketing, but through wider marketing.

Your service hasn't changed. Your customers' reasons to need it are as diverse as they've always been. The only question is whether your marketing acknowledges all of them, or just the one you put on your business card.

Further Reading

• Ehrenberg-Bass: Linking brand messages to buying situations wins 'the mind and the market' - Marketing Week's coverage of the CEP research and its implications for brand growth
• Category Entry Points: The Modern Blueprint for Brand Growth - Deep dive into how CEPs work in practice with worked examples
• Only 16% of brands are using Category Entry Points - Hearts & Science 2026 study on CEP adoption and the structural barriers holding brands back
• Google Ads data shows query length shift post-AI Mode - Search Engine Land's analysis of the shift toward longer, more specific search queries
• Mental vs Physical Availability: Operational Guide 2026 - Practical guide to measuring and building both types of availability