# Page Not Found

The URL `reference/api/resources/device_config_variable` does not exist.

You might be looking for one of these pages:
- [Device config variable](https://docs.balena.io/reference/api/resources/device-config-variable.md)
- [Device service variable](https://docs.balena.io/reference/api/resources/device-service-variable.md)
- [Fleet config variable](https://docs.balena.io/reference/api/resources/fleet-config-variable.md)
- [Device Environment Variable](https://docs.balena.io/reference/api/resources/device-environment-variable.md)
- [Fleet environment variable](https://docs.balena.io/reference/api/resources/fleet-environment-variable.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://docs.balena.io/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://docs.balena.io/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/reference/api/resources/device-config-variable.md`)
- Use `Accept: text/markdown` header for content negotiation