Solspace Calendar
Sends a notification when a Solspace Calendar Event is triggered.
Requires Solspace Calendar
Only available when the Solspace Calendar plugin is installed.
Calendar Events
A Calendar Event is a scheduled occurrence on a Solspace Calendar, either a one-time event or a recurring series.

When an event is saved
Fires when a Calendar Event is saved. Covers both creation and updates to existing events, including changes to recurrence rules.
When an event is deleted
Fires when a Calendar Event is deleted. Covers both soft deletes (moved to the trash) and hard deletes.
When an event is restored
Fires when a soft-deleted Calendar Event is restored from the trash.