You can send reminders to your clients to re-book follow-ups or other appointments from your My Services pages.
1) Go to My Practice > My Services
2) Click on the More Options button (3 dots) next to the service
3) Select Invite to book from the options provided
4) Select a client you'd like to send the reminder to
5) Customize the reminder subject and message, and optionally suggest a day your client should request the session:
6) Click Send to send an email reminder to your client