Delete calendar event using iCalendar file import (Outlook 2003 problem)?

Question

Is there a way for me to delete items from calendar by using iCalendar import?

I know that there is a METHOD:CANCEL, however when I tried it, it didn\'t do anything

Answer 1

This can be a painful and unpredictable business, and is likely dependent on Outlook version. I have got event cancellations working with Outlook 2010 (v14). I send my icalendar as a single-part message, type text/calendar, as discussed in this thread. As mentionned in the other answers, I have method=CANCEL in the MIME type, and again in the icalendar.

The critical step for me was to add DTSTART to the event. Without this field, the message is not presented as a cancellation, there is nothing in the preview pane, and the calendar is presented as an attachment with the filename "not supported calendar message.ics". But you can put any date you like in the field! DTEND is not important. SEQUENCE could be the same or greater. DTSTAMP is not important, but if present, must be after the DTSTAMP sent with the initial invitation, otherwise the text "not active" appears instead of the "delete from calendar" button.

This is a minimal working cancellation...

BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//www.notilus.com//Dimo Gestion Notilus//FR
CALSCALE:GREGORIAN
METHOD:CANCEL
BEGIN:VEVENT
DTSTART:20140625T123000Z
SEQUENCE:1
STATUS:CANCELLED
UID:Kerry
END:VEVENT
END:VCALENDAR