# Page Not Found

The URL `understanding-the-device-lifecycle` does not exist.

You might be looking for one of these pages:
- [Mapping the IoT device lifecycle](https://docs.iotify.io/concepts/stateful-simulation/understanding-the-device-lifecycle.md)
- [Generating Messages](https://docs.iotify.io/concepts/understanding-a-test/generating-messages.md)
- [Response Handler](https://docs.iotify.io/concepts/understanding-a-test/response-handler.md)
- [Understanding Tests](https://docs.iotify.io/concepts/understanding-a-test.md)
- [Exporting/Importing Tests](https://docs.iotify.io/concepts/understanding-a-test/exporting-importing-tests.md)

## How to find the correct page

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

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/concepts/stateful-simulation/understanding-the-device-lifecycle.md`)
- Use `Accept: text/markdown` header for content negotiation