# Subscribe to participant disconnected events in Amazon Connect Agent Workspace
onParticipantDisconnected()

Subscribes to participant disconnected events. This event fires when a participant leaves or is removed from a contact.

 **Signature** 

```
onParticipantDisconnected(handler: ParticipantDisconnectedHandler, contactId?: string): void
```

 **Usage** 

```
const handleParticipantDisconnected = (event) => {
    console.log(`Participant disconnected: ${event.participant.participantId}`);
};

contactClient.onParticipantDisconnected(
    handleParticipantDisconnected,
    "contact-123"
);
```

 **Input** 


|  **Parameter**  |  **Type**  |  **Description**  | 
| --- | --- | --- | 
| handler Required | ParticipantDisconnectedHandler | Event handler function to call when participants disconnect | 
| contactId | string | Optional contact ID to filter events for a specific contact | 

 **Event Structure - ParticipantDisconnected** 

The handler receives a ParticipantDisconnected event with:
+ `participant`: ParticipantData - The participant that was disconnected

 **Permissions required:** 

```
Contact.Details.View
```