I have duplicate calendar and contact entries on my device
If you have previously completed a 1-way import of your contacts or calendar, completing a 2-way sync might result in duplicate calendar entries and contacts on your device. To remove duplications, after you sync you can clear the local calendar and contacts databases on your device.
- On your device home screen, swipe down from the top of the screen
- Tap the Settings icon > Accounts.
- Tap the icon.
- Tap Clear Local Calendar or Clear Local Contacts.
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