# Page Not Found

The URL `en/latest/appendix-a-how-the-backup-process-works` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [How Backup Works](https://docs.duplicati.com/technical-details/understanding-backup/how-backup-works.md)
- [How Restore Works](https://docs.duplicati.com/technical-details/understanding-restore/how-restore-works.md)
- [Set up a backup in the UI](https://docs.duplicati.com/getting-started/set-up-a-backup-in-the-ui.md)
- [Office 365 backup and restore](https://docs.duplicati.com/automation-and-integration/office-365-backup-and-restore.md)
- [Duplicati Inc & Open Source](https://docs.duplicati.com/duplicati-programs/license/duplicati-inc-and-open-source.md)

## How to find the correct page

If the exact page cannot be found, you can still retrieve the information using the documentation query interface.

### Option 1 — Ask a question (recommended)

Perform an HTTP GET request on the documentation index with the `ask` parameter:

```
GET https://docs.duplicati.com/technical-details/understanding-backup/how-backup-works.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

### Option 2 — Browse the documentation index

Full index: https://docs.duplicati.com/sitemap.md

Use this to discover valid page paths or navigate the documentation structure.

### Option 3 — Retrieve the full documentation corpus

Full export: https://docs.duplicati.com/llms-full.txt

Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive.

## Tips for requesting documentation

Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/technical-details/understanding-backup/how-backup-works.md`).

You may also use `Accept: text/markdown` header for content negotiation.