Funnel diagrams that actually help
Most funnel charts in dashboards are decoration. Three rules to make a funnel that triggers action.
Funnel charts in dashboards usually show a sequence of steps with totals. Pretty, useless.
What makes a funnel actually drive decisions:
- Show drop percentages, not just totals. "30% drop from step 2 to 3" is actionable. "1242 → 869 users" is not.
- Compare cohorts side by side. Last month vs this month. New users vs returning. Otherwise drops have no context.
- Click into each drop. The funnel diagram is the entry point, not the answer. Each step needs a drill-down to session recordings.
Tools that get it right: Mixpanel, Amplitude, Posthog. Tools that mostly fail: Google Analytics, dashboards built by analysts in Looker.