Odoo-Tutorial/academy_management/data/scheduled_action_cron.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>

    <data>
        <record id="ir_cron_send_training_reminders" model="ir.cron">
            <field name="name">Nhắc nhở lịch học</field>
            <field name="model_id" ref="academy_management.model_academy_schedule" />
            <field name="state">code</field>
            <field name="code">model._send_reminder()</field>
            <field name="interval_number">1</field>
            <field name="interval_type">minutes</field>
            <!-- <field name="numbercall">-1</field> -->
            <!-- <field name="doall" eval="False" /> -->
            <field name="active" eval="True" />
        </record>
    </data>

</odoo>