Hi,

I have prepared a custom module to meet your requirement of displaying product details (product name and quantity) in the Sale Orders tree view. If you know odoo developing, Below is the solution:

Python Code:

Inherit the sale.order model to add a computed field product_details that combines the product name and quantity from the order lines.

from odoo import fields, models, api


class SaleOrder(models.Model):
    _inherit = 'sale.order'

    product_details = fields.Text(string='Product Details', compute='_compute_product_details', store=True)

    @api.depends('order_line.product_template_id', 'order_line.product_uom_qty')
    def _compute_product_details(self):
        for order in self:
            details = []
            if not order.order_line:
                order.product_details = ""
            else:
                for line in order.order_line:
                    details.append(f"{line.product_template_id.name} - {line.product_uom_qty or 0.0}")
                order.product_details = "\n".join(details)


XML Code:
The XML adds the product_details field as a column in the Sale Orders and Quotations tree views.


<?xml version="1.0" encoding="UTF-8" ?>
<odoo>
    <data>
<!-- Add product details to the Sale Order tree view -->
        <record id="view_order_tree_product_details" model="ir.ui.view">
            <field name="name">sale.order.tree.product.details</field>
            <field name="model">sale.order</field>
            <field name="inherit_id" ref="sale.view_order_tree"/>
            <field name="arch" type="xml">
                <xpath expr="//field[@name='partner_id']" position="after">
                    <field name="product_details" width="200"/>
                </xpath>
            </field>
        </record>

<!-- Add product details to the Quotation tree view -->
        <record id="view_order_quotation_tree_product_details" model="ir.ui.view">
            <field name="name">sale.order.tree.product.details</field>
            <field name="model">sale.order</field>
            <field name="inherit_id" ref="sale.view_quotation_tree_with_onboarding"/>
            <field name="arch" type="xml">
                <xpath expr="//field[@name='partner_id']" position="after">
                    <field name="product_details" width="200"/>
                </xpath>
            </field>
        </record>
    </data>
</odoo>





Add the code to a new module in your custom add-ons directory.
Update your module list and install the custom module.
Open the Sale Orders menu to see the new "Product Details" column in the tree view.

Best regards,
-----------------------------
NIZAMUDHEEN MJ
Accurates