The short answer
Ctv attribution
CTV often appears weak in last-click reporting because it influences demand earlier than conversion channels. Measuring only the final touch systematically undervalues attention, memory and upstream impact.
Advertisers often underinvest in connected television because CTV does not fit neatly inside last-click attribution. That is not evidence that television is ineffective. It is evidence that the measurement model is looking for influence in the wrong place.
Why does last-click attribution undervalue CTV?
Last-click measures proximity to conversion, not the full cause of it. CTV usually works earlier by building familiarity, category memory and confidence. Search, retargeting and direct traffic appear later and receive the credit because they are easier to observe.
If a measurement framework can only recognise the final touch, upstream media will always look less efficient than the channels harvesting demand.
What does CTV contribute to a media plan?
CTV combines large-screen attention, sound and premium programming environments. It can introduce a proposition with more emotional and narrative space than most lower-funnel formats. That makes it useful for creating the mental availability that later conversion channels depend on.
This does not mean every CTV impression is valuable. Audience quality, creative strength, frequency and supply transparency still matter. The point is to assess the channel against the job it is designed to do.
How should advertisers measure CTV?
Use a blended framework. Combine reach and frequency with brand-lift research, search movement, site visitation, geographic or audience holdouts and incrementality testing where scale allows. Evaluate how exposed groups behave over time rather than demanding an immediate in-platform conversion from every impression.
Cross-channel measurement should also examine whether paid search and retargeting become more productive when CTV is active. If lower-funnel performance improves, the channel collecting the conversion may not be the channel that created the demand.
When is skipping CTV a mistake?
It is a mistake when a brand needs awareness, trust or sustained growth but rejects the channel solely because last-click reporting cannot credit it. That decision outsources strategy to software designed around a narrower customer journey.
Growth does not come only from what is easiest to prove. It comes from understanding how channels work together and measuring each one against its real role.
A credible CTV test needs enough budget, time and audience separation to observe change. A token allocation that never achieves meaningful reach cannot prove or disprove the channel’s value in practice.
Sources and further reading