# Page Not Found

The URL `using-caspen/calendar/appointment-notifications/customising-email-and-sms-appointment-templates` does not exist.

You might be looking for one of these pages:
- [Update an appointment status](https://support.caspen.com/using-caspen/calendar/appointments/update-an-appointment-status.md)
- [Cancel an appointment](https://support.caspen.com/using-caspen/calendar/appointments/cancel-an-appointment.md)
- [Mark an appointment as missed](https://support.caspen.com/using-caspen/calendar/appointments/mark-an-appointment-as-missed.md)
- [Create an appointment](https://support.caspen.com/using-caspen/calendar/appointments/create-an-appointment.md)
- [Edit an appointment](https://support.caspen.com/using-caspen/calendar/appointments/edit-an-appointment.md)

## How to find the correct page

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

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/using-caspen/calendar/appointments/update-an-appointment-status.md`)
- Use `Accept: text/markdown` header for content negotiation