Hi Greta, at present you can only specify a single template, and it is associated at the Practice level.

If you look in the examples at http://www.openvpms.org/documentation/csh/1.9/admin/template/SMSAppointm... there is one that demonstrates how you can change the text based on the appointment type i.e.:

expr:if($appointment.appointmentType.entity.name = 'Admit - Surgery',

concat("Reminder: East Island Vets Surgery Appointment", $nl,
        expr:var("patient.name")," ",
        date:formatDate($appointment.startTime, "short"),
        " @ ", date:formatTime($appointment.startTime, "short"), $nl,
        "Remember: water is OK but no food after 9pm ",date:formatDate(date:add($appointment.startTime,"-1d"), "short"),$nl,
        'If queries phone ', party:getTelephone($location)),

concat("Reminder: East Island Vets Appointment", $nl,
        expr:if(expr:var("patient.name") != "",expr:var("patient.name"), "is on")," ",
        date:formatDate($appointment.startTime, "short"),
        " @ ", date:formatTime($appointment.startTime, "short"), $nl,
        'If queries phone ', party:getTelephone($location))

)

It would be much simpler if individual appointment types were able to use their own templates.