No there isnt. If they would rather cut and paste the appointments. They
should do so by using keyboard shortcuts: Cntrl+X (cut) Cntrl+V(paste).

As Judy said dragging is a very useful and powerful function.

Regards
"HayCobb" wrote:

Is there any way to stop the drag and drop option for appointments in
Calendar? We have just began to use this in our office and already have
instances of people accidentally clicking on an appointment and moving it to
a different time.