Office 365 default Calendar's ID changes automatically
问题 I was using V2 DLL of Office 365 API for performing calendar operations. I am saving default calendar's ID for performing operations on it. It was working fine for me from last two years but lately since last 1 month, when I am trying to fetch calendars from my account - just to check if the calendar is available on whom I am trying to work on - the calendar ID fetched is different from the calendar ID fetched from O365 API Saved Calendar ID -