odoo17e-kedaikipas58/addons/account_sepa_direct_debit/views/report_invoice.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <data>
        <template id="sdd_report_invoice_document" inherit_id="account.report_invoice_document">
            <xpath expr="//div[@t-if='not is_html_empty(o.narration)']" position="before">
                <!--This code breaks HTML standards but kepts to avoid breaking customization-->
                <p t-if="o.sdd_mandate_id">
                  <span><p/><p/></span>
                </p>
                <div t-if="o.sdd_mandate_id">
                    <div>
                      <p>
                        This invoice will be paid using direct debit and is only
                        sent for informative purposes.
                      </p>
                      <p>
                        Please do not pay it manually, the payment will be asked to your bank to be processed
                        automatically.
                      </p>
                    </div>
                </div>
            </xpath>
        </template>
    </data>
</odoo>