How can I find out who added an Appointment into the Appointment Book?

The 'Audit' history will provide an overview of who has added appointments to the appointment book and who made any amendments to the appointment. 

To view the 'Audit' history simply follow the below steps:

Go to 'Patient' > 'Audit' > 'Appointment History'. See below:

Simply select the magnifying glass located beside the appointment and you will then be able to see an overview of the history of the appointment and view the user that made the different actions. See below:

The 'Audit' history is also very useful for viewing who updated the patient details, who took the recent payments, and who and what communication was sent out to the patient.