# ParentHierarchy

> The parent transform hierarchy changed. Indicates that a direct or indirect parent has been added, removed or re-parented.

## Definition

* **Type:** Field
* **Namespace:** [Unity.U2D.Physics](/engine/6000.7/script-reference/unity/u2d/physics.md)
* **Assembly:** UnityEngine.PhysicsCore2DModule

```csharp
ParentHierarchy = 128
```