> ## Documentation Index
> Fetch the complete documentation index at: https://developer.z-api.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Chat status

> Chat presence status callback webhook

## Overview

This is the chat presence status callback webhook.

<Warning>
  Z-API does not accept webhooks that are not **HTTPS**.
</Warning>

<Info>
  To see all callback examples by status, check the [Chat status callback examples](/en/webhooks/on-chat-presence-examples) page.
</Info>

***

## Update webhook

### Header

<ParamField path="instanceId" type="string" required>
  Your instance ID. Available in the Z-API panel under **Instances**.
</ParamField>

<ParamField path="token" type="string" required>
  Your Z-API instance token.
</ParamField>

### Body

<ParamField body="value" type="string" required>
  Chat presence webhook URL
</ParamField>

### Request Body

```json theme={"theme":{"light":"github-light","dark":"poimandres"}}
{
  "value": "https://your-system-address.com/instance/YOUR_INSTANCE/presence"
}
```

***

## Response

### 200

```json theme={"theme":{"light":"github-light","dark":"poimandres"}}
{
  "value": true
}
```

### 405

Make sure you are correctly sending the method specification, that is, verify that you sent POST or PUT as specified at the beginning of this topic.

### 415

If you receive a 415 error, make sure to add the "Content-Type" header to your request, which in most cases is "application/json".