Added on:
Jun 12, 2025
User Prompt
Start → Browse Products → Add to Cart → Checkout
→ Payment Gateway
→ Payment Success?
├─ No → Show Error → Retry
└─ Yes → Inventory Check → Create Order → Notify Seller → Package Item
→ Ship Item → Delivery Success?
├─ No → Handle Exception
└─ Yes → Delivered
→ Return Requested?
├─ Yes → Return Approved? → Refund Process
└─ No → End