Events# Impression Event# An event emitted by Supply-Side Agent when a User interacts with a Site. There are three types of Impression Events: Register Event# Emitted when a User navigates to a Site. View Event# Emitted when a Creative is rendered on a User’s screen. Click Event# Emitted when a User interacts with a Creative by clicking on it. Conversion Event# An event emitted by Demand-Side Agent when a User performs an action (e.g. purchase) while browsing a Target.