You can now, at a glance, find out if a customer added a request while booking his/her appointment, or if you or one of your colleagues added a specific note for that customer.
When a note is added to an appointment, a new icon appears directly on the appointment in the calendar.
*The icon is the white circle at bottom right, on this picture.
All you have to do then is to click on it, to access the note.
Here are all the options to add a note on a appointment.