odoo17e-kedaikipas58/addons/appointment_sms/data/appointment_demo.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo noupdate="1">
    <record id="appointment.appointment_type_dental_care" model="appointment.type">
        <field name="reminder_ids" eval="[(6, 0, [ref('calendar_alarm_data_1h_sms')])]"/>
    </record>
</odoo>