Using New Outlook on Windows for personal email, calendar, and contact management
Hi - you don't need to use the Google calendar hack (which I can confirm no longer works anyway).
Please review the post from Orange Fox pasted here:
I discovered the fix. It is a setting in the Outlook program*.
FIX:
In Outlook (on your PC)
Select File > Account Settings> Account SettingsSelect the Data Files tab
Highlight your default Outlook account (ie. yourname @ outlook . com)
Select Settings>Advanced tab
Uncheck "Turn on shared calendar improvements"
Click OK and Close.
Close and restart Outlook.
Then add your Tripit calendar and select Yes to the pop up.
I was able to add my Tripit feed and have confirmed via a few days of testing that it updates properly when I add, delete, or change things in Tripit. So far, so good. I also added a second Tripit feed, and replicated this same fix on another person's computer.
Hope this helps someone.
*I am using Outlook for Microsoft 365 MSO (Version 2403)