PROVIDER_UNAVAILABLE

The calendar provider is not responding normally.

HTTP status: 503. Retrying the same request may succeed.

What to do

Retry with exponential backoff. Check the provider's status page for ongoing incidents.

Hint returned with the error: Retry the request with exponential backoff.

Why it happens

• A Google or Microsoft outage
• Provider maintenance

Endpoints that return it

• List calendar groups GET /v2/calendar-groups
• Create a calendar group POST /v2/calendar-groups
• List calendars GET /v2/calendars
• Create a calendar POST /v2/calendars
• Rename a calendar group PATCH /v2/calendar-groups/{groupId}
• Delete a calendar group DELETE /v2/calendar-groups/{groupId}
• Get a calendar GET /v2/calendars/{calendarRef}
• Update a calendar PATCH /v2/calendars/{calendarRef}
• Delete a calendar DELETE /v2/calendars/{calendarRef}
• Subscribe to a calendar POST /v2/calendars/subscribe
• List categories GET /v2/calendars/{calendarRef}/categories
• Create a category POST /v2/calendars/{calendarRef}/categories
• List calendar permissions GET /v2/calendars/{calendarRef}/permissions
• Share a calendar POST /v2/calendars/{calendarRef}/permissions
• Unsubscribe from a calendar DELETE /v2/calendars/{calendarRef}/subscription
• Update a category PATCH /v2/calendars/{calendarRef}/categories/{categoryId}
• Delete a category DELETE /v2/calendars/{calendarRef}/categories/{categoryId}
• Update a calendar permission PATCH /v2/calendars/{calendarRef}/permissions/{permissionId}
• Delete a calendar permission DELETE /v2/calendars/{calendarRef}/permissions/{permissionId}
• List events GET /v2/events
• Create an event POST /v2/events
• Get an event GET /v2/events/{eventId}
• Update an event PATCH /v2/events/{eventId}
• Delete an event DELETE /v2/events/{eventId}
• Import an event POST /v2/events/import
• Create an event from text POST /v2/events/quick
• List an event's attachments GET /v2/events/{eventId}/attachments
• Attach a link POST /v2/events/{eventId}/attachments
• Forward an invitation POST /v2/events/{eventId}/forward
• List occurrences of a recurring event GET /v2/events/{eventId}/instances
• Move an event to another calendar POST /v2/events/{eventId}/move
• Respond to an invitation POST /v2/events/{eventId}/respond
• Delete an attachment DELETE /v2/events/{eventId}/attachments/{attachmentId}
• Upload a file to an event POST /v2/events/{eventId}/attachments/file
• Dismiss a reminder POST /v2/events/{eventId}/reminder/dismiss
• Snooze a reminder POST /v2/events/{eventId}/reminder/snooze
• Download an attachment GET /v2/events/{eventId}/attachments/{attachmentId}/content
• List rooms and resources GET /v2/rooms
• List meetings GET /v2/meetings
• Create a meeting POST /v2/meetings
• Get a meeting GET /v2/meetings/{meetingId}
• Update a meeting PATCH /v2/meetings/{meetingId}
• Delete a meeting DELETE /v2/meetings/{meetingId}

Related errors

• PROVIDER_TIMEOUT