Establish a single, blended CAC target across all marketing channels. As long as your total spend stays below this number, you have the flexibility to continue spending and experimenting with new channels without being beholden to the short-term performance of any single one.

While a blended CAC is the North Star metric, don't discard individual channel analysis. Use siloed metrics to diagnose problems. When your overall blended CAC increases, dive into the channel-specific data to identify the underperforming source, such as ad fatigue on a specific platform.

Channels with high direct CAC often contribute to brand awareness that results in conversions on other platforms. A siloed view would cut these channels. A blended CAC approach values their overall contribution, allowing longer-term, brand-focused plays to run without being penalized for poor last-touch attribution.

Using a blended CAC doesn't mean ignoring individual channel performance. Use the blended number as your high-level strategic guide. When it rises, dive into the siloed, channel-specific metrics to diagnose the root cause of underperformance and make tactical adjustments.

A blended CAC across all channels hides crucial information. By calculating CAC for each individual platform or method (e.g., paid ads, content, outreach), businesses can identify their most efficient channels. This allows them to reallocate budget and effort to the highest-performing areas for more profitable growth.

Standard attribution models often fail to credit upper-funnel activities. A blended CAC mitigates this by focusing on total investment vs. total customers, implicitly valuing channels that influence conversions even if they don't get the final click. This prevents prematurely cutting channels that assist others.

Manscaped shifted its TV strategy from a branding experiment to a core growth channel. They measure its success with performance metrics like Cost Per Acquisition (CPA), applying the same rigor used for paid search and social, ensuring TV directly contributes to business goals.

The common 3-5x ROAS benchmark is an optimization target, not an initial gate. When testing a new paid channel, aim for break-even first. This proves viability and buys you time to iterate on creative, audience, and spend levels to find a scalable, efficient model.

Instead of optimizing each channel in isolation, establish a single blended CAC target across all marketing efforts. This provides a holistic view of performance, preventing premature cuts to channels that assist conversions attributed elsewhere. It acts as a single health metric for your entire acquisition strategy.