Applying a single attribution model, like last-touch, to all channels is a mistake. It undervalues top-of-funnel activities and can lead to budget cuts that starve the pipeline. Instead, measure each channel based on its intended outcome and funnel stage.

A low Customer Acquisition Cost (CAC) might seem successful, but it could be hiding inefficient creative. Optimizing creative strategy could dramatically lower CAC further (e.g., from $39 to $16), unlocking greater profitability and scale, especially as you increase ad spend.

Many marketers mistakenly assume performance marketing channels scale linearly. Co-founder Andy Lambert learned that simply increasing the budget doesn't produce proportional results. Instead, efficiency breaks down, and customer acquisition costs rise, highlighting an over-fixation on demand capture versus sustainable demand creation.

Focusing on a low Cost Per Lead is a common mistake; cheap leads often fail to convert. The more meaningful metric is Customer Acquisition Cost—total marketing spend divided by actual new customers. This shifts focus from lead volume to profitable growth and true campaign effectiveness.

Instead of treating all channels equally, identify which customer segments (e.g., brand advertisers) are best served by which channels (e.g., TV screens). Shifting demand accordingly can unlock massive growth by optimizing the entire portfolio and increasing customer ROI.

6AM City treats its reliable cost-per-subscriber from Meta lead ads as the baseline for evaluating all other growth tactics. For any new initiative, like a community event, they compare the cost against the number of subscribers it would have generated via Meta ads. If a $5,000 event doesn't yield 5,000 subscribers, the ROI is considered negative.

Resident's team doesn't set fixed goals (e.g., "Meta must hit 200% ROAS"). Instead, they constantly evaluate channels relative to each other in real-time. This flexible approach allows them to dynamically shift budget to the most efficient platforms as market conditions change, maximizing overall yield.

Founders often miscalculate Customer Acquisition Cost by measuring the cost to acquire a trial user, not a paying customer. This creates a dangerously optimistic view of unit economics. True CAC must account for the trial-to-paid conversion rate (e.g., if trial CAC is $130 and 1 in 3 convert, true CAC is ~$400).

Entrepreneurs often miscalculate CAC by focusing only on direct costs like ad spend. A comprehensive calculation must include all associated expenses: salaries for marketing and sales staff, creative teams, software subscriptions, and commissions. This provides a true picture of profitability.