I make one sale but analyze: what backend offer should I create? Map the backend: after initial purchase, what else do they need? Calculate: if I had backend offer, what's the lifetime value increase? Show me the backend design: main offer leads to this backend. Give me the backend strategy: offer this after initial purchase. Include: what natural next step exists after my main offer, how to structure backend offer, and whether I'm only monetizing once when I could monetize twice.