# BuildSessionGUID

> A unique identifier for the build session. Required.

## Definition

* **Type:** Field
* **Namespace:** [UnityEditor.Build](/engine/6000.7/script-reference/unityeditor/build.md)
* **Assembly:** UnityEditor.CoreModule

```csharp
public GUID BuildSessionGUID
```

### Remarks

For more information, refer to [BuildReportSummary.BuildSessionGUID](/engine/6000.7/script-reference/unityeditor/build/buildreportsummary/buildsessionguid.md).