My biggest issue/headache is figuring out how to Update and Delete events in both calendars. For example, I can easily create a flow that creates an event in Google Calendar after I create the event in Outlook Calendar. However, after this event has been added to both calendars I cannot figure out how to associate the event IDs together so that when I update the event in Outlook the same event is updated in Google. This is the same issue I have with deleting events in Outlook, I can delete them in Outlook but the event remains in the Google Calendar.