<p>Add a tag to a Step Functions resource.</p> <p>An array of key-value pairs. For more information, see <a href="https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/cost-alloc-tags.html">Using Cost Allocation Tags</a> in the <i>Amazon Web Services Billing and Cost Management User Guide</i>, and <a href="https://docs.aws.amazon.com/IAM/latest/UserGuide/access_iam-tags.html">Controlling Access Using IAM Tags</a>.</p> <p>Tags may only contain Unicode letters, digits, white space, or these symbols: <code>_ . : / = + - @</code>.</p>

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

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

<p>Add a tag to a Step Functions resource.</p> <p>An array of key-value pairs. For more information, see <a href="https://docs.aws.amazon.com/awsaccountbilling/latest/aboutv2/cost-alloc-tags.html">Using Cost Allocation Tags</a> in the <i>Amazon Web Services Billing and Cost Management User Guide</i>, and <a href="https://docs.aws.amazon.com/IAM/latest/UserGuide/access_iam-tags.html">Controlling Access Using IAM Tags</a>.</p> <p>Tags may only contain Unicode letters, digits, white space, or these symbols: <code>_ . : / = + - @</code>.</p>

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

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