---
title: Request IDs | Luminary
---

Every response from the Luminary API includes a unique request identifier in the `X-Lum-Req-Id` response header. This identifier is essential for troubleshooting and should be included when contacting Luminary support about any API issues.

Example:

```
HTTP/2 200
Content-Type: application/json
X-Lum-Req-Id: RE_01KEA0EHYBH3XH2SYHTYSXKAVX
```

## When to Use the Request ID

Include the `X-Lum-Req-Id` when reporting issues to Luminary support in the following scenarios:

- **Unexpected errors** — When you receive an error response that you believe is incorrect
- **Timeout issues** — When requests are taking longer than expected or timing out
- **Data discrepancies** — When the response data doesn’t match your expectations
- **Intermittent failures** — When requests fail sporadically

## Contacting Support

When reaching out to Luminary support, please include:

1. The `X-Lum-Req-Id` from the response
2. The timestamp of when the request was made
3. A description of the expected vs. actual behavior
4. The endpoint and HTTP method used

This information helps the Luminary support team quickly locate and diagnose the issue.