Nine metrics connect a trade show to revenue: target-account meetings booked and held, qualified conversations held, cost per qualified conversation, existing-customer touches completed, new named contacts added inside target accounts, meeting-to-opportunity conversion rate at 90 days, follow-up completion rate within 10 days, pipeline influenced in dollars, and closed revenue attributable to the show. If you can only track three, use target-account meetings booked, qualified conversations held, and follow-up completion within 10 days.