---
title: kABUIDProperty
framework: addressbook
role: symbol
role_heading: Global Variable
path: addressbook/kabuidproperty
---

# kABUIDProperty

The unique ID for this record. It’s guaranteed never to change, no matter how much the record changes. If you need to store a reference to a record, use this value. Type: kABStringProperty.

## Declaration

```swift
let kABUIDProperty: String
```

## See Also

### Constants

- [kABCreationDateProperty](addressbook/kabcreationdateproperty.md)
- [kABModificationDateProperty](addressbook/kabmodificationdateproperty.md)