# referenceId

> The Managed Reference ID. (Read Only)

## Definition

* **Type:** Property
* **Namespace:** [UnityEditor](/engine/6000.6/script-reference/unityeditor.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
public long referenceId { get; }
```

### Remarks

The ID of the Managed Reference object.

Additional Resources: SerializationUtility.GetManagedReference