---
title: birthdayPersonUniqueID
framework: eventkit
role: symbol
role_heading: Instance Property
path: eventkit/ekevent/birthdaypersonuniqueid
---

# birthdayPersonUniqueID

The Address Book framework record identifier of the person for this birthday event.

## Declaration

```swift
var birthdayPersonUniqueID: String? { get }
```

## Discussion

Discussion This property is only set if this is a birthday event; otherwise the property is nil. Special Considerations note: This property is equivalent to the birthdayPersonID property on iOS.

## See Also

### Accessing Event Properties

- [eventIdentifier](eventkit/ekevent/eventidentifier.md)
- [availability](eventkit/ekevent/availability.md)
- [startDate](eventkit/ekevent/startdate.md)
- [endDate](eventkit/ekevent/enddate.md)
- [isAllDay](eventkit/ekevent/isallday.md)
- [occurrenceDate](eventkit/ekevent/occurrencedate.md)
- [isDetached](eventkit/ekevent/isdetached.md)
- [organizer](eventkit/ekevent/organizer.md)
- [status](eventkit/ekevent/status.md)
- [birthdayContactIdentifier](eventkit/ekevent/birthdaycontactidentifier.md)
- [structuredLocation](eventkit/ekevent/structuredlocation.md)
- [birthdayPersonID](eventkit/ekevent/birthdaypersonid.md)