# Page Not Found

The URL `api/messaging/add-private-note` does not exist.

You might be looking for one of these pages:
- [Add Private Note](https://docs.sendstackhq.com/delivery-api/messaging/add-private-note.md)
- [Update note status](https://docs.sendstackhq.com/delivery-api/messaging/update-note-status.md)
- [Send Customer Message](https://docs.sendstackhq.com/delivery-api/messaging/send-customer-message.md)
- [Track Delivery Status](https://docs.sendstackhq.com/delivery-api/status-tracking/track-delivery-status.md)
- [New internal note](https://docs.sendstackhq.com/delivery-api/sample-webhook-payloads/new-internal-note.md)

## How to find the correct page

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

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/delivery-api/messaging/add-private-note.md`)
- Use `Accept: text/markdown` header for content negotiation