Event reminders are notifications sent by email to remind you of an upcoming event. Event reminders are available only to users logged in with a Teamup user account.
You can create event reminders for single events, or for a sub-calendar. If you create an event reminder for an entire sub-calendar, you will be notified of all current and future events on that sub-calendar.
For sub-calendar reminders, there are two types of reminders you can set up: Event Reminders section sets reminders for time-specific events, and the section below it, All-Day Event Reminders, sets reminders for all-day events.
Currently, event reminders are delivered by email only. More delivery options will be added in the future, as well.
For more details, see How to Use Event Reminders