North star metric

A north star metric is the one leading indicator a company rallies around — usually a measure of delivered value (not revenue itself). For Airbnb: nights booked. For Spotify: time spent listening. For Slack: messages sent within teams above the paid threshold. A good north star is a leading indicator (moves before revenue does), captures actual value delivered (not vanity metrics like signups), and is sensitive to product + lifecycle interventions (you can move it). The alternative — chasing revenue as the primary metric — is a trailing indicator and disconnects the team from the underlying customer behaviour. Lifecycle programs calibrate against the north star because it's the metric most directly movable by retention work.