Marketing Attribution is often reduced to touchpoint, yet the business effect appears only when collecting a defensible event trail connects with applying credit rules. If conversion path is incomplete or attribution window uses the wrong boundary, a touchpoint dashboard can still direct money or work toward the wrong conclusion.
This explainer follows marketing attribution from first-touch model through last-touch model and into multi-touch model. Within marketing attribution, each section owns one mechanism, shows its incrementality consequence, and marks where holdout group, risk, or economics needs more context than the channel overlap headline provides.