What happens automatically once a time is confirmed

Four things happen

For scheduling done with an account, confirming triggers the automatic meeting URL, the calendar entry, the confirmation email, and the reminders before the start. All four are on from the beginning for newly created schedules.

The confirmation email

One message each to you and to the participants. A participant message carries only that person own response URL; nothing about the other participants is included.

A calendar file (.ics) is attached. Participants with no email address on file do not receive anything.

Reminders

24 hours and 1 hour before the start. Anything already past at the moment of confirmation is skipped: confirm two hours ahead and only the 1 hour reminder arrives. Reminders carry no .ics attachment.

The calendar entry

With a calendar connected, the confirmed event is written automatically. Without one, the entry is simply skipped and the notifications still arrive.

The automatic meeting URL

With a meeting tool connected, a meeting URL is created as the time is confirmed and included in the notification and in the calendar entry.

Without a connection, the confirmation does not arrive either

This is where the behaviour differs from the calendar. If the automatic meeting URL is switched on while no meeting tool is connected, or the connection has lapsed, the URL cannot be created and the confirmation email is not sent at all.

If you are not using meeting URLs, set the meeting method to none when creating the schedule. Confirmations then arrive regardless of the connection state.

If a notification does not arrive

If only some participants are missing it, check whether they have an email address on file. If nobody received it, check the meeting method and whether the meeting tool is connected.

If the calendar entry is missing, check the calendar connection. If only reminders are missing, check whether that timing had already passed when you confirmed.