# Page Not Found

The URL `messaging/calling-api/initial-setup-and-configuration` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [Managing Opt-ins, Opt-outs and Preferences](https://docs.360dialog.com/partner/messaging/utility-messages/managing-opt-ins-opt-outs-and-preferences.md)
- [Technical details for MM API](https://docs.360dialog.com/partner/messaging/marketing-messages/technical-details-for-mm-api.md)
- [Onboarding and Sending Messages](https://docs.360dialog.com/partner/messaging/marketing-messages/onboarding-and-sending-messages.md)
- [Expected Errors & Programming Languages](https://docs.360dialog.com/partner/messaging/marketing-messages/expected-errors-and-programming-languages.md)
- [Automation, Human Handoff and Quick Replies](https://docs.360dialog.com/partner/messaging/utility-messages/automation-human-handoff-and-quick-replies.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.360dialog.com/partner/messaging/utility-messages/managing-opt-ins-opt-outs-and-preferences.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.360dialog.com/partner/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.360dialog.com/partner/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., `/partner/messaging/utility-messages/managing-opt-ins-opt-outs-and-preferences.md`).

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