This document outlines the 9 keys to success in the subscription economy: 1) Price, 2) Acquire, 3) Bill, 4) Collect, 5) Nurture, 6) Account, 7) Measure, 8) Iterate, and 9) Scale. It discusses how each key is challenging and provides examples and strategies for mastering each one. Building a successful subscription business requires addressing all 9 keys through tools like subscription billing and management platforms.