Retrieving lost calendar appointment

by sabeltiger81 at 2013-04-23 04:49:48

We have created a common user, where an appointment are missing from the calendar either deleted or otherwise, it cannot be found under deleted items and I have also tried from the only user who has access to the calendar to enable full details view. Nothing helped.

Are there any solutions to get this appointment back so I can send out a cancellation regarding any appointments that has been sent from this calendar?