Every event you add to your calendar with calendar rules has an event record associated with the matter where it was added. These events use the CalendarRules record type on the Event object.
Locate Calendar Rule Events in three places:
• On the calendar where they were added
• The Activities timeline on the matter
• The Associated Events tab of a Calendar Rules Trigger.
Example of a Calendar Rules Event:
Edit this page layout
Edit the Calendar Rule Trigger Event page layout on the Event object to change these fields.