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Some examples of the settings on Email Templates for emails from tours - note especially '[Properties]' Email Templates#Wecanaddsymbolsyourequire:also Email Templates#TourSeason

To the travel agent or concierge

on receipt of payment by customer (direct bookings or web bookings normally)

Alerting internal employees about new bookings

Alerting food providers of the food order

Sending the customer invoice manually

Billing Payment and who gets invoiced

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