Returns the display string of optional attendees names for the appointment. This property corresponds to the MAPI property PR_DISPLAY_CC.
When you click the Invite Others… button on the Attendee Availability page of a meeting request, the Select Attendees and Resources dialog box appears. If you type in or select a name from the list and then click the Optional button, this attendee is now an optional attendee.
Read-only String.
Syntax
objAppointmentItem.OptionalAttendees
objAppointmentItem Required. An expression that returns an AppointmentItem object.