<?xml version="1.0"?>
<data><field name="display_invoice_alert" position="after">
                <field name="display_purchase_orders_alert" invisible="True"/>
            </field>
            <span id="display_invoice_alert" position="after">
                <span id="display_purchase_orders_alert" attrs="{'invisible': [('display_purchase_orders_alert', '=', False)]}" groups="purchase.group_purchase_user">
                    There are active purchase orders linked to this sale order that are not cancelled automatically! <br/>
                </span>
            </span>
        </data>