Whenever changes are made to your Apple ID security settings (including a password change), Apple deletes all previously generated app-specific passwords. To fix it, follow these steps:

Update iCloud Calendar Password

In the iOS app

  1. Open the Sugarmate app

  2. Tap the ≡ button in the top left corner of the screen

  3. Tap Apple Watch

  4. Tap Fix Setup (or Setup)

  5. Tap the update button on the calendar entry. If that isn't an option, delete the calendar entry and tap Add a calendar

  6. Enter your Apple ID and a new 16-digit app-specific password. You can obtain a new password by following the steps here: https://sugarmate.io/icloud_setup

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