If you created the recurring meetings, you can change and delete one occurrence or the series of meetings. An email is sent to attendees.
Right-click on the meeting to change.
Select whether to open only the selected date, Instance, or to open the series. The Appointment Details page opens.
Make your changes. You can change the schedule, the attendees, add an explanation in the Text field and add an attachment.
If the changes you made do not require notifying users, click Options on the toolbar and uncheck Send Notification Mail.
If you are sending an email to attendees of the changes but do not need them to respond to the message, in Options uncheck Request Responses.
Click OK. An email is sent to the attendees.
Right-click on the appointment to delete and select Instance>Delete Instance to delete this meeting only.
Click OK.
Right-click on the appointment to delete and select Series>Delete Series to delete the recurring meeting.
Select either:
Cancel the entire series to remove all references to the meeting both past dates and future dates.
Cancel only the selected instance and everything after to delete all references to the meeting from this date to the recurring meeting end date. Prior meetings in this recurring series are still on your calendar.
Click OK.
An email is sent to the attendees and the recurring appointment is deleted from their calendars.