Invitees can confirm or cancel their attendance either in the  Info Center calendar or directly in the appointment request.

1. Go to th Calendar and right-click the appointment to open a drop-down list of options.
   1. Confirm by selecting  Confirm attendance.
   2. If you are not sure yet, select  Attendance pending and enter a short explanatory text if necessary.
   3. To reject an invitation, select  Cancel attendance and enter a short explanation if necessary.
2. The appointment is also linked to the internal confirmation request and can be confirmed or cancelled by using the drop-down list.
3. The appointment is also linked to the email confirmation request and can be confirmed or cancelled by using the drop-down list.