> ## Documentation Index
> Fetch the complete documentation index at: https://docs.ycloud.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Contact Unsubscribe Created Webhook Examples

> Handle contact unsubscribe creation events.

<Note>For the exhaustive schema-derived catalog, see [all examples](/en/api-reference/guides/examples/webhook-examples/webhook-payload-examples).</Note>

## What it is

Handle contact unsubscribe creation events.

## Before you begin

* Create a public HTTPS endpoint in your application.
* Configure a YCloud webhook endpoint for the event types you need.
* Store the endpoint signing secret securely.
* Make event processing idempotent.

## How it works

YCloud sends an HTTP `POST` request when the event occurs. Verify the signature, durably record the event, return a `2xx` response, and process slow work asynchronously.

## Request

The scenarios below show requests delivered to your webhook URL. Treat the event `id` as the delivery identifier and use `type` to route the payload.

## Response

Return a `2xx` status after accepting the event.

```http theme={"theme":{"light":"github-light","dark":"github-dark"}}
HTTP/1.1 200 OK
```

<Note>For endpoint setup, signature validation, and retry behavior, see [Configure webhooks](/en/api-reference/guides/api-fundamentals/configure-webhooks).</Note>

<br />

<br />

occurs when the user unsubscribed from the whatsapp message you sent. The webhook payload contains the user's mobile phone number information and the unsubscribe time.

## Contact Unsubscribe Created Example

### Request

```json theme={"theme":{"light":"github-light","dark":"github-dark"}}
{
  "id": "evt_68f8886903683f3481f9707b",
  "type": "contact.unsubscribe.created",
  "apiVersion": "v2",
  "createTime": "2025-10-22T07:31:53.872Z",
  "unsubscriberChanged": {
    "id": "68f888692abba5779b565928",
    "phoneNumber": "+8615166662222",
    "source": "API",
    "updateTime": "2025-10-22T07:31:53.864Z"
  }
}
```

### Response

Acknowledge the delivery after durably accepting the event.

```http theme={"theme":{"light":"github-light","dark":"github-dark"}}
HTTP/1.1 200 OK
```

### Explanation

* The `unsubscriberChanged` object contains the user's mobile phone number information and the unsubscribe time.

<br />


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