---
title: stable
framework: appintents
role: symbol
role_heading: Instance Property
path: appintents/syncableentityidentifier/stable
---

# stable

The identifier you use to refer to the entity across devices.

## Declaration

```swift
let stable: StableID?
```

## Discussion

Discussion Use this property to retrieve the stable identifier value you specified at initialization time. When the framework creates identifiers for on-device operations, it can set this property to nil if it doesn’t need the stable identifier.