---
title: groupIdentifier
framework: gamekit
role: symbol
role_heading: Instance Property
path: gamekit/gkgameactivitydefinition/groupidentifier
---

# groupIdentifier

The group identifier for the activity, if one exists.

## Declaration

```swift
var groupIdentifier: String? { get }
```

## See Also

### Getting the identifier properties

- [identifier](gamekit/gkgameactivitydefinition/identifier.md)