What is the property in an AppointmentItem (MeetingStatus = olMeeting), to change the Calendar I'm using to schedule a meeting?
It is using the default account no matter what. I need to alternate between accounts configured in Outlook.
I tested these properties:
.SendUsingAccount
.Organizer
The Organizer property of the AppointmentItem class is read-only. So, the only possible way is to re-create appointment in the appropriate calendar/folder.
See How To: Create a new Outlook Appointment item for possible ways.