Step 1: Open the class in the calendar
Go to Calendar
Click the class you want to delete
Click the trash icon in the top right of the detail window

Step 2: Choose what you want to delete
A dropdown appears with three options:
Cancel only this event — Cancels only the selected class. All other classes in the series remain. Use this to cancel one specific session.
Cancel this and all following events — Cancels the selected class and all future occurrences. Classes before this date remain.
Cancel all events in the series — Cancels the entire series, including past classes. Please note: this cannot be undone.
What happens to registered participants?
Registered members automatically receive a cancellation notification if notifications are enabled. Credits are refunded if this is configured in the class cancellation policy.