If the MBO integration is connected, any time an appointment is scheduled via MBO, it will notify the client via emails from both mind body and Trainerize.

If you're booking recurring/multiple appointments in MBO, this will result in a large amount of emails being sent to the client from the Trainerize system.

Clients can individually disable email and in-app notifications for appointments, but there is no account-wide setting that can apply it for all clients.