Save the booking so it appears on Today and in your reservation list.
Why it matters (technical but essential): Until this step runs, the guest may have paid or filled a form, but staff will not see a reservation on the day view. Almost every live occupancy flow includes it after payment (or after selection if payment is skipped).
When to use: Any visit that should show as a reservation — tables, rooms, play areas, events.
Typical place in the funnel: After Pagamento diretto online (PayNow) (or after hold/price when free) → often next to Crea un ordine (SyncOrderEntry) / Creare una fattura (SyncInvoiceEntry) → then emails.
Without it: No row on Today; hold may expire with nothing lasting.
See pattern booking-classic-occupancy and Creare una fattura (SyncInvoiceEntry).