Marketing
Why Last-Touch Attribution Is a Measurement Illusion in 2026
Last-touch attribution assumes the final interaction caused the conversion, but modern B2B buying journeys rarely work that way. Buyers research through AI tools, peer networks, and dark social long before interacting with a vendor’s website. As a result, attribution models often misrepresent which channels actually drive demand. To understand real marketing impact, organizations must measure how investments interact across the full revenue system using approaches like Marketing Mix Modeling and incrementality analysis.
























