ICalendar and event updates not working in Outlook

Question

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

Answer 1

I'm using Entourage, so this may not match up exactly with the behavior you're seeing, but I hope it helps.

Using the iCalendar from your reply, Entourage wouldn't even import the data. Using a known-good file, I got it to import, then successfully update. Comparing the two files, the only structural differences are as follows:

• My known-good doesn't have a VERSION element
• My known-good doesn't have a PRODID element
• My known-good doesn't have a STATUS element
• My known-good doesn't have a SEQUENCE element

Since Microsoft's support for open standards tends to lag, I'd suggest trying without the VERSION info.