You can cancel or modify a manual administrator booking in the Facilities module.
For changes to reservations related to Rentals bookings, refer to the following documentation: Cancel/ Modify a Rental Contract
Via the Facilities>Calendar subtab, locate the booking you wish to modify or cancel.
Click on the booking in the calendar.
In the Event Details window, in the Edit section, select whether you want to make changes for This event only or for All events of the entire series.
When making changes to This event (only): Change will be applied to this occurrence only, even if it is part of a recurrence.
Make the desired changes in the Schedule and/or Information sections. Ex: Date, Time, Booking name, Facility, Description, etc.
When making changes to All Events: Changes will be applied to all occurrences of the recurrence.
Make the desired changes in the Schedule and/or Information sections. Ex: Date, Time, Recurrence, Booking name, Facility, Description, etc.
Select whether you want to cancel only this event or All events from the recurrence.