res_config.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
<data>

<record id="view_account_config_settings" model="ir.ui.view">
    <field name="name">sepa_direct_debit.account_config_settings.form</field>
    <field name="model">account.config.settings</field>
    <field name="inherit_id" ref="account.view_account_config_settings"/>
    <field name="arch" type="xml">
        <div name="payment_acquirer" position="before">
            <div name="sepa_direct_debit">
                <label for="sepa_creditor_identifier"/>
                <field name="sepa_creditor_identifier" class="oe_inline"
                    placeholder="Write the ICS of your company"/>
            </div>
        </div>
    </field>
</record>

</data>
</odoo>