Hi,
Hi Megha,
To make the pricelist_id field in the Sales Order read-only for a specific group, you can use the attrs attribute to conditionally set the readonly property based on the user's group. Here's how you can achieve this:
<record id="view_sales_order_form" model="ir.ui.view">    <field name="name">sale.order.form.inherited</field>
    <field name="model">sale.order</field>
    <field name="inherit_id" ref="sale.view_order_form"/>
    <field name="arch" type="xml">
        <xpath expr="//field[@name='pricelist_id']" position="attributes">
            <attribute name="attrs">{'readonly': [('group_id', 'not in', [ref('module_name.new_group')])]}</attribute>
        </xpath>
    </field>
</record>
This XML code will set the pricelist_id field as read-only for users who are not in the new_group. Replace module_name.new_group with the actual XML ID of your group new_group.
Make sure to replace 'module_name.new_group' with the appropriate XML ID of your group. Additionally, ensure that your group IDs are correctly defined in your Odoo.
Hope it helpful