Component

Create or update the invoice from paid / ordered positions.

Why it matters: This is the accounting document guests and bookkeeping expect — separate from “there is a reservation on Today.”

When to use: After payment (or zero-total checkout) when you need an invoice. Extremely common just before notify steps.

Typical place in the funnel: End of the sync cluster → InformGuestViaEmail → InformOperator.

Without it: You may have a reservation and payment, but no invoice document.

See pattern booking-with-payment.