# iCloud CalDAV errors now return 403 instead of 504

Source: https://developer.nylas.com/docs/changelogs/2026-08-19-icloud-caldav-error-code/

## Fixed

- **iCloud CalDAV authorization errors** now return `403 Forbidden` instead of `504 Gateway Timeout`. If your integration retries on `504` responses for iCloud calendar grants, also handle `403`, since some of those failures are permission issues rather than timeouts.