china_addons/oec_im_wecom_base/data/res_company_data.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <data noupdate="1">
        <record id="base.main_company" model="res.company">
            <field name="abbreviated_name">My Company</field>
        </record>
    </data> 
</odoo>