cron.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  Copyright 2022 Akretion France (https://www.akretion.com/)
  @author: Alexis de Lattre <alexis.delattre@akretion.com>
  License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
-->

<odoo noupdate="1">

<record id="account_invoice_download_cron" model="ir.cron">
    <field name="name">Download Vendor Bills</field>
    <field name="active" eval="False"/>
    <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> <!-- ONLY v17- : don't limit the number of calls -->
    <!-- v10 and lower -->
    <field name="model" eval="'account.invoice.download.account'"/>
    <field name="function">run_cron</field>
    <field name="args">()</field>
    <!-- v11+  -->
    <field name="model_id" ref="model_account_invoice_download_account"/>
    <field name="state">code</field>
    <field name="code">model.get_next_mail()</field>
</record>

</odoo>