If a customer books on my website late at night when my office is closed, will the ticket be issued automatically?

Yes, in most cases it can be. When you sell through a connected supplier, the booking can be made and the ticket issued by the system itself the moment the payment clears, so someone buying in the middle of the night gets their confirmation without anyone in your office being awake. That is one of the main reasons to have a portal at all, because it keeps selling while you sleep.

Whether it truly happens on its own depends on the supplier and on how you set things up. Many airline and hotel connections confirm instantly. Others come back as on request, which means a person at the supplier or at the hotel has to accept the booking, and that will not happen until their office opens. Some agencies also choose to hold every booking for a manual look before issuing, either to guard against card fraud or because a fare looked unusual. If you switch that check on, the booking waits for you rather than going out overnight.

For most small teams the sensible middle ground is to let the instant suppliers issue on their own and keep manual review only for the connections you trust less, or for payments over an amount you set. The customer still receives an immediate email saying their booking has been received and is being confirmed, so nobody is left in the dark, and you finish the rest when you come in.

Ask your supplier which of your connections confirm instantly and which are on request, then decide where you want automatic issue and where you want a human to look first. It is also worth checking the wording your customer sees while a booking is still pending, so a late night buyer knows exactly what will happen next.