The Thursday Promise

  • Checkout
    • Cart & address
    • Payment
    • Promise date (Thu)
  • Warehouse
  • Delivery
    • Dusk departure
    • Route 7
    • Doorstep photo
    • Drivers asked for a later cut-off on Thursdays. Check with ops.
  • When it breaks
    • Retry with backoff
      • for try := 1; try <= 5; try++ {
    if err := send(order); err == nil {
        return nil // delivered
    }
    time.Sleep(backoff(try))
}
    • Dead-letter queue
    • Apology email (auto)

Payment

  • Authorise
    • 3-D Secure
    • Card network
  • Fraud score
    • Rules
    • Model (0.82)
    • Scores above 0.8 go to a person, never straight to a refusal.
  • Capture on ship
  • Refunds

Refunds

  • Partial
    • One item
    • Shipping only
  • Full
    • Before dispatch
    • Lost in transit
  • Store credit (+10%)

Warehouse