If you already have your Outlook account added, tap it and then tap the switch next to “Calendars” to toggle it on.

If prompted, give permission for the app to sync your iPhone’s data.

If you’re using a Mac, click the Apple icon and select System Preferences > iCloud.

This method will only work on Windows computers, so if you’re using a Mac, try using iCloud or [[|iPhone Settings.

For iTunes syncing to work, you’ll need to disable iCloud. You can disable iCloud by going to Settings > Your Name > iCloud. From there, you can tap the switch next to “Calendars” to turn off syncing.