A backend event that fires when a Wix event's reminders are sent.
The onEventReminder()
event handler runs when a Wix event is set to have a reminder
and the time of the reminder arrives.
The received EventReminder
object contains information about the event.
Configure when the reminder is sent in the site dashboard.
Note: Backend events are not fired when previewing your site.
Information about the event that the reminder was sent for.