pos/pos_loyalty/views/loyalty_rule_view.xml

<?xml version="1.0"?>
<odoo>
    <record id="loyalty_rule_form_view" model="ir.ui.view">
        <field name="name">loyalty.rule.form</field>
        <field name="model">loyalty.rule</field>
        <field name="arch" type="xml">
            <form string="Loyalty Rule">
                <div class="oe_title">
                    <label class="oe_edit_only" for="name"/>
                    <h1>
                        <field name="name" class="oe_inline"/>
                    </h1>
                </div>
                <group>
                    <group>
                        <field name="type"/>
                    </group>
                    <group>
                        <field name="product_id"  attrs="{'invisible': [('type','!=','product')], 'required': [('type','=','product')]}"/>
                        <field name="category_id" attrs="{'invisible': [('type','!=','category')], 'required': [('type','=','category')]}"/>
                    </group>
                </group>
                <group col="6">
                    <field name="pp_product"/>
                    <field name="pp_currency"/>
                    <field name="cumulative"/>
                </group>
            </form>
        </field>
    </record>
</odoo>