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  "title" : "Default Record Properties"
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# Default Record Properties

Properties common to all types of records.

## Topics

### Constants

[`kABUIDProperty`](/documentation/AddressBook/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`](/documentation/AddressBook/kABStringProperty).

[`kABCreationDateProperty`](/documentation/AddressBook/kABCreationDateProperty)

The date when the record was first saved. Type: [`kABDateProperty`](/documentation/AddressBook/kABDateProperty).

[`kABModificationDateProperty`](/documentation/AddressBook/kABModificationDateProperty)

The date when the record was last saved. Type: [`kABDateProperty`](/documentation/AddressBook/kABDateProperty).


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