How to prioritise channels when your budget is tight
With a constrained marketing budget, every channel decision has an opportunity cost. Spending on channel A means not spending on channel B. Here is how I help clients think through channel prioritisation.
Every business I work with faces some version of the same question: we have X to spend on marketing, what should we spend it on? The answer is not universal - it depends on the business model, the customer journey, the margins, and the stage of growth. But the framework for answering it is consistent.
Start with the bottom of the funnel
When budget is limited, start with the channels that capture intent that already exists rather than creating intent from scratch. Paid search is the clearest example. People who search "emergency plumber Manchester" have an immediate need. If you are not visible for that query, that demand goes to a competitor. Capturing existing demand is almost always more efficient than creating demand when resources are scarce.
Organic search, though slower to impact, also captures existing demand. Investing in SEO alongside paid search means that over time you reduce your dependency on paid for high-cost terms.
Measure before expanding
Before adding a new channel, have evidence that your existing channels are working. Expanding from Google Ads to Meta, LinkedIn, and YouTube simultaneously without proof of concept in any single channel means no channel gets enough budget to perform properly and you end up with confusing, inconclusive data across all of them. Run your core channel to efficiency first. Then expand.
Customer lifetime value changes the calculation
A business with high customer lifetime value - a subscription, a recurring contract, a high-repeat purchase product - can justify a higher acquisition cost than a business with a single-purchase model. Channel priorities should reflect LTV. If your customers stay for three years and spend £1,200 annually, paying £300 to acquire them is very different from paying £300 for a customer who buys once at £150. Know your LTV before you set CPA targets and channel budgets.
The channels with the highest CPA risk
Channels that create demand rather than capture it - Display, YouTube, social media advertising - carry higher CPA risk because the audience is not actively searching for what you offer. These channels build awareness and influence downstream conversions. They are important in a complete marketing mix. They are expensive for direct acquisition and difficult to justify as primary channels on a limited budget. Fund them once your direct response channels are working.
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