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# Participant

An active participant in a group session.

```
struct Participant
```

## Overview

Use a `Participant` object to differentiate among users in a session.
A participant object doesn’t contain any sensitive data about the user,
but provides a unique identifier to distinguish the user while
the session is active.

You don’t create participant objects directly. The system creates a
participant object for each user that joins an activity. Access
the current set of participants from the [`activeParticipants`](/documentation/GroupActivities/GroupSession/activeParticipants) property of
the [`GroupSession`](/documentation/GroupActivities/GroupSession) object associated with the activity.

## Topics

### Getting the unique identifier

[`id`](/documentation/GroupActivities/Participant/id)

A globally unique identifier for the session participant.

### Comparing participants


---

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