<p>Attaches one or more traffic sources to the specified Auto Scaling group.</p> <p>You can use any of the following as traffic sources for an Auto Scaling group:</p> <ul> <li> <p>Application Load Balancer</p> </li> <li> <p>Classic Load Balancer</p> </li> <li> <p>Gateway Load Balancer</p> </li> <li> <p>Network Load Balancer</p> </li> <li> <p>VPC Lattice</p> </li> </ul> <p>This operation is additive and does not detach existing traffic sources from the Auto Scaling group. </p> <p>After the operation completes, use the <a>DescribeTrafficSources</a> API to return details about the state of the attachments between traffic sources and your Auto Scaling group. To detach a traffic source from the Auto Scaling group, call the <a>DetachTrafficSources</a> API.</p>

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

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