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# calendarIdentifier

A unique identifier for the calendar.

```
var calendarIdentifier: String { get }
```

## Discussion

This property is set when the calendar is created and can be used as a local identifier. Use [`calendar(withIdentifier:)`](/documentation/EventKit/EKEventStore/calendar(withIdentifier:)) to get a calendar with the specified identifier.

A full sync with the calendar will lose this identifier. You should have a plan for dealing with a calendar whose identifier is no longer fetch-able by caching its other properties.

## See Also

[`calendarItemIdentifier`](/documentation/EventKit/EKCalendarItem/calendarItemIdentifier)

The calendar item’s unique identifier.


---

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