<note> <p>This is <b>AWS WAF Classic</b> documentation. For more information, see <a href="https://docs.aws.amazon.com/waf/latest/developerguide/classic-waf-chapter.html">AWS WAF Classic</a> in the developer guide.</p> <p> <b>For the latest version of AWS WAF</b>, use the AWS WAFV2 API and see the <a href="https://docs.aws.amazon.com/waf/latest/developerguide/waf-chapter.html">AWS WAF Developer Guide</a>. With the latest version, AWS WAF has a single set of endpoints for regional and global use. </p> </note> <p>Permanently deletes a <a>Rule</a>. You can't delete a <code>Rule</code> if it's still used in any <code>WebACL</code> objects or if it still includes any predicates, such as <code>ByteMatchSet</code> objects.</p> <p>If you just want to remove a <code>Rule</code> from a <code>WebACL</code>, use <a>UpdateWebACL</a>.</p> <p>To permanently delete a <code>Rule</code> from AWS WAF, perform the following steps:</p> <ol> <li> <p>Update the <code>Rule</code> to remove predicates, if any. For more information, see <a>UpdateRule</a>.</p> </li> <li> <p>Use <a>GetChangeToken</a> to get the change token that you provide in the <code>ChangeToken</code> parameter of a <code>DeleteRule</code> request.</p> </li> <li> <p>Submit a <code>DeleteRule</code> request.</p> </li> </ol>

{
  "success": true,
  "data": {
    "id": "abc123",
    "created_at": "2025-01-01T00:00:00Z"
  }
}

{
  "success": false,
  "error": {
    "code": "VALIDATION_ERROR",
    "message": "Invalid request parameters"
  }
}