# Page Not Found

The URL `ajouter-un-numero` does not exist.

You might be looking for one of these pages:
- [Send by Long Number](https://www.docpartner.dev/en/api/sms-partner/send-sms/send-by-long-number.md)
- [Error Codes](https://www.docpartner.dev/en/api/error-codes.md)
- [Contact Management](https://www.docpartner.dev/en/api/sms-partner/contact-management.md)
- [Welcome](https://www.docpartner.dev/en/readme.md)
- [Replies / Opt-outs Management](https://www.docpartner.dev/en/api/sms-partner/replies-opt-outs-management.md)

## How to find the correct page

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

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/en/api/sms-partner/send-sms/send-by-long-number.md`)
- Use `Accept: text/markdown` header for content negotiation