Outlook 2025 Icloud Calendar Not Syncing. If your contacts, calendars and reminders are in icloud, then icloud will automatically update your information. I have noticed that my contacts and calendar are not syncing from icloud.
If i accept an invite in mail on my laptop it won’t appear in the calendar, it just evaporates! The new outlook interface might have undergone updates that are affecting the integration of icloud calendars.