SaaS business ka core kya hai? 👉 Recurring revenue Lekin problem kahan hoti hai? 👉 Reality: 👉 Billing system strong nahi hoga → revenue leak hoga 👉 Solution: 👉 Subscription Payment Gateway 👉 Result: ⚡ Quick Answer Subscription payment gateway: 👉 Simple: Once subscribe → auto pay 🚫 Sabse Badi