ics not updating organizer calendar

Question

I am writing an application that will send out .ics files to be interpreted mainly by outlook. When my applications sends an update, it will successfully update everyone\'s cale

Answer 1

So, you guys are correct and this is expected behavior. I tried adding the organiser as an attendee and ended up running into problems when I tried to create an event cancellation. The organiser would receive the email but be unable to remove from calendar because they were recognized as the organizer.

I ended up abandoning using ICS files and instead started using a library that communicates through Exchange Web Services. EWS allowed me to simulate creating a meeting on someone's calendar through an API and then adding attendees just like I created the meeting in Outlook. Specifically, I was using python so I started using Exchangelib.

I wanted to put an answer to this question for anyone else that may stumble upon this.

Answer 2

This is expected. As the organiser, your client assumes that only itself is in control of invitation. As such it ignores invitations sent by other parties. You may want to make the organiser also an ATTENDEE but there is no guarantee that this will work.

See Change event description for organizer using VCalendar and When creating an iCal event on behalf of an organizer and email it to him, no "Add to calendar" or "RSVP" wrappers appear