I'm generating ICalendar (.ics) files.
Using the UID and SEQUENCE fields I can update existing events in Google Calendar and in Windows Calendar BUT NOT in MS Outlook 2007 – it just creates a second event
How do I get them to work for Outlook ?
Thanks
Tom
Best Answer
I've continued to do some testing and have now managed to get Outlook to update and cancel events based on the .cs file.
Outlook in fact seems to respond to the rules defined in RFC 2446
In summary you have to specify
METHOD:REQUEST
andORGANIZER:xxxxxxxx
in addition to
UID
: andSEQUENCE:
For a cancellation you have to specify
METHOD:CANCEL
Request/Update Example
Cancel Example;