Once you turn Reminders back on, your reminders will be re-synced to your device.

For example, the changes that you made on one device didnt appear on all of your devices.

Shared reminders are also not accessible to users with earlier versions of iOS and macOS, until they upgrade.

Check your Apple ID and make sure that you turn on what you want to update (Contacts, Calendars, or Reminders).

If youre using macOS Mojave or earlier, choose Apple menu System Preferences, then click iCloud.

Check your Apple ID and make sure that you select what you want to update (Contacts, Calendars, or Reminders).

Check your Apple ID and make sure that you select what you want to update (Mail, Contacts, Calendars, and Tasks).

If you cant open the page, get help connecting to the Internet.

Safari needs access to port 443 to update your information in iCloud.

See if your information is in iCloud or a third-party account, like Google or Yahoo.

Changing your default account to iCloud will not move your existing information from a third-party service to iCloud.

If you dont see the contact youre looking for, its stored in another account.

If a specific timeframe is selected, choose All Events instead.

If a specific timeframe is selected, choose All Events or All Reminders instead.

Outlook Calendar Not Syncing Mac Like ICloud

If you use multiple accounts on your Mac like iCloud, Gmail, and Yahoo, make sure that iCloud is your default Calendar account.

Then make sure that you set up your account correctly in Reminders.

If you use multiple accounts on your Mac like iCloud, Gmail, and Yahoo, make sure that iCloud is your default Contacts account.

Outlook For Mac Calendar Not Syncing