Incrementality Testing Under Consent Signal Loss
Incrementality testing survives consent signal loss because it measures groups, not individuals.
Deshawn Calloway-Firth
Section
8 stories in Consent & Performance.
Incrementality testing survives consent signal loss because it measures groups, not individuals.
Confirming subscriber intent at signup lifts inbox placement by nearly 40 percentage points.
Smaller consented audiences compress ROAS faster as high-intent prospects exhaust.
Putting consent first in segmentation builds smaller, cleaner audiences that convert better.
High match rates mean little without documented consent for each activation purpose.
Google's modeling patches consent gaps, but only for sites that qualify and only partially.
Missing consent signals silently tank CPM and fill rates.
Design choices, not luck, determine whether consent rates soar to 80% or sink below 10%.