To edit the text that is sent in text messages do the following
- Go to Scripts > Open Scripts
- Click edit on the script you want to edit.
- Edit the text.
- You can use the tokens such as $CLIENT_NAME to insert place holders that will be replaced when the message is sent.
- Click preview to preview the message.
- Click Save.
There are lots of different ways to send different scripts for different types of appointments or in certain situations.
Additional Articles that might help.
- Creating sequences so you can send multiple reminders for a single appointment.