Cancel Invitation in Public Calendar

Outlook435
I have a user who has created an appointment using a public calendar. When

they open the appointment the option to cancel the invitation is not

available. As a test I created a test calendar in the public folders and

created an appointment. Still the cancel invitation button is grayed out. I

created an appointment on my own calendar and the cancel invitation button is

available. Any ideas on why this option is not available with the public

calendar? How does one cancel an invitation for an appointment on a public

calendar. In both instances the person trying to cancel is the organizer.


-