Hello. In Insight Classic, if you open the Client Editor and select Change Log - F9, you then have the option to select Display Appointment History. This will show you all changes made to an appointment. Please see attached screenshot from one of our internal demo databases with some pretend patient information. If you have any further questions feel free to leave a comment here or contact Insight Support via Support Hub and log a case at supporthub.webpt.com or call (503) 525-0275 (option 2) and notify them of any issues.