title: Cancel appointment and associated resources in Outlook when created using EWS Managed API
body: <p>I am using the EWS Managed API to create appoitments on Exchange 2010.</p>
  
  <pre><code>Appointment appointment = new Appointment(exchangeService);
  
  appointment.Subject = "Sample meeting";
  appointment.Body = "Sample meeting body";
  appointment.Start = bookingInfo.from;
  appointment.End = bookingInfo.from.AddMinutes(bookingInfo.duration);
  
  appointment.Location = meetingRoom.displayName;
  appointment.Resources.Add(&lt;my_room_mail&gt;);
  
  // Send the meeting request to all attendees and save a copy in the Sent Items folder.
  appointment.Save(SendInvitationsMode.SendToAllAndSaveCopy);
  </code></pre>
  
  <p>This piece of code create effectively an appoitment in my Outlook but the Meeting Room included as a resource is marked as a "tentative" (not really accepted). So <strong>when I want to delete the meeting, the meeting room stay booked (busy/tentative) for the slot</strong> and it is impossible to delete the tentative. </p>
  
  <p>If I delete the appoitment from the EWS code (using the appoitment ID), it works as expected, the room is effectively free.</p>
  
  <pre><code>Appointment appointment = Appointment.Bind(exchangeService, new ItemId(itemId));
  appointment.Delete(DeleteMode.MoveToDeletedItems);
  </code></pre>
  
  <p>Do you have any idea of what is the problem ? Outlook right ? Bad appoitment creation or resource booking ?</p>