---
title: url
framework: groupactivities
role: symbol
role_heading: Instance Property
path: groupactivities/groupsessionevent/url
---

# url

The URL to open when the participant taps the event link in the system UI.

## Declaration

```swift
let url: URL?
```

## Discussion

Discussion When the user taps your custom event in the system UI, the system opens the provided URL. Specify a universal link to open your app to the place where the action occurred. If the value of this link is nil, the system brings your app to the foreground. For information about how to support universal links in your app, see Supporting universal links in your app

## See Also

### Getting the event details

- [originator](groupactivities/groupsessionevent/originator.md)
- [action](groupactivities/groupsessionevent/action-swift.property.md)
- [GroupSessionEvent.Action](groupactivities/groupsessionevent/action-swift.struct.md)