Webhook Secret not received in header

Hi,

The x-hub-signature header is still not being received for webhooks created via REST APIs using OAuth access tokens in Jira Cloud, even though a secret was provided. Any help or clarification on this would be greatly appreciated.

If possible, please share any official documentation that explains this behavior.

Referenced document (for Connect and OAuth apps):
:backhand_index_pointing_right: developer.atlassian.com/cloud/jira/platform/webhooks

My API endpoint:
https://api.atlassian.com/ex/jira/{jira_cloud_id}/rest/api/3/webhook

Tried Payloads

  1. {
    “name”: “New 1111”,
    “url”: “https://webhook.site/xxxxxxx”,
    “webhooks”: [
    {
    “events”: [“jira:issue_created”, “jira:issue_updated”],
    “jqlFilter”: “project = SKP”,
    “configuration”: {
    “secret”: “myZohoSecretToken999”
    }
    }
    ]
    }
    2.“configuration”: {
    “SECRET”: “myZohoSecretToken999”
    }

  2. {

    “secret”: “myZohoSecretToken999”
    }
    4.{

    “SECRET”: “myZohoSecretToken999”
    }