partner-contact/partner_identification/views/res_partner_view.xml

<?xml version="1.0" encoding="UTF-8" ?>
<odoo>
    <!-- Modification of Partner - Adding Tab for Idenification Numbers -->
    <record model="ir.ui.view" id="view_partner_form">
        <field name="name">res.partner.form.id_number</field>
        <field name="model">res.partner</field>
        <field name="inherit_id" ref="base.view_partner_form" />
        <field name="priority" eval="10" />
        <field name="arch" type="xml">
            <page name='sales_purchases' position="after">
                <page string="ID Numbers" name="id_numbers">
                    <field
                        name="id_numbers"
                        colspan="4"
                        nolabel="1"
                        widget="one2many_list"
                        context="{'default_partner_id': active_id}"
                    />
                </page>
            </page>
        </field>
    </record>
</odoo>