# Page Not Found

The URL `migration-and-additional-channel/how-to-migrate-a-phone-number-from-co-existence-coex-to-co-existence-coex-on-doubletick` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [How to Migrate a Phone Number from Co-existence (CoEx) to Co-existence (CoEx)](https://learn.doubletick.io/migration-and-additional-channel/how-to-migrate-a-phone-number-from-co-existence-coex-to-co-existence-coex.md)
- [How to Migrate a WhatsApp Number from Coexistence to Cloud API on DoubleTick](https://learn.doubletick.io/migration-and-additional-channel/how-to-migrate-a-whatsapp-number-from-coexistence-to-cloud-api-on-doubletick.md)
- [How to Migrate a WhatsApp Number from Cloud API to Coexistence on DoubleTick](https://learn.doubletick.io/migration-and-additional-channel/how-to-migrate-a-whatsapp-number-from-cloud-api-to-coexistence-on-doubletick.md)
- [API to API Migration Guide: Migrating an Existing WhatsApp API Number to DoubleTick](https://learn.doubletick.io/migration-and-additional-channel/api-to-api-migration-guide-migrating-an-existing-whatsapp-api-number-to-doubletick.md)
- [How to Onboard an Additional WABA in DoubleTick on Coexistence (Embedded Signup)](https://learn.doubletick.io/migration-and-additional-channel/how-to-onboard-an-additional-waba-in-doubletick-on-coexistence-embedded-signup.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://learn.doubletick.io/migration-and-additional-channel/how-to-migrate-a-phone-number-from-co-existence-coex-to-co-existence-coex.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://learn.doubletick.io/sitemap.md

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

### Option 3 — Retrieve the full documentation corpus

Full export: https://learn.doubletick.io/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., `/migration-and-additional-channel/how-to-migrate-a-phone-number-from-co-existence-coex-to-co-existence-coex.md`).

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