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      iPhone Calendar Synchronization issue with OneDoc (Apple iOS 18.4 Update)

      Since the latest Apple update, some users are experiencing a blockage in OneDoc synchronization via CalDAV (iPhone or Mac). This issue does not originate from OneDoc, it is due to a known Apple bug, which affects several services.

      (see Apple’s official discussion)

      Who is affected?

      • iPhone users

      • Who have installed the latest Apple update

      • And whose OneDoc calendars are synced via CalDAV

      Workaround solution

      Here’s how to restore functionality:

      1. Open the Settings app on your iPhone

      2. Go to Calendar > Accounts

      3. Select the affected account

      4. Enter the account settings

      5. Disable Calendar sync (⚠️ do not delete the account)

      6. In the Username field, delete the "@" symbol and retype it manually

        Capture d’écran 2025-04-17 à 09.48.04

      7. Re-enter your application-specific password

      8. Tap OK / Done

      9. Re-enable Calendar sync

      This should reestablish the CalDAV connection and restore syncing with your OneDoc calendar.