ir_cron.xml

<?xml version="1.0"?>
<!--
    Copyright (C) 2021 - Today Cooperatic
    Author : fracolo
    License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
-->
<odoo>
    <record forcecreate="True" id="cron_missing_shift_email" model="ir.cron">
        <field name="name">Missing Shift Email</field>
        <field name="user_id" ref="base.user_root" />
        <field name="interval_number">1</field>
        <field name="interval_type">days</field>
        <field name="numbercall">-1</field>
        <field name="nextcall" eval="(DateTime.now() + timedelta(days=1)).strftime('%Y-%m-%d 20:00:00')"/>
        <field name="doall" eval="False"/>
        <field name="model" eval="'shift.registration'"/>
        <field name="function" eval="'send_shift_missing_emails'"/>
        <field name="args" eval="'()'"/>
        <field name="active" eval="False"/>
        <field name="priority">2</field>
    </record>
</odoo>