Hi, my objective is to limit the visibility of the Cancel Sales Order button to Sales Orders in draft state:

User Group 'All Documents': Should be able to cancel quotes

User Group 'Sales Manager': Should be able to cancel SOs even when confirmed

I did some research on domains and this is what I came up with:

<record id="so_cancel_restrict" model="ir.ui.view">
        <field name="name">sale.order.cancel.restrict</field>
        <field name="model">sale.order</field>
        <field name="inherit_id" ref="sale.view_order_form"/>
        <field name="arch" type="xml">
            <xpath expr="//button[@name='action_cancel']" position="attributes">
                <attribute name="domain">['|', '&' ('states','=', 'draft'), ('groups', '=', 'sales_team.group_sale_salesman_all_leads'), '|', ('states' , '!=', 'draft'), ('groups', '=', ' sales_team.group_sale_manager')]</attribute>
            </xpath>
        </field>
    </record>

However, this does not work and there seems to be something substantial about domains I don't seem to understand. Hope somebody can help. Thanks!