You can override the res.partner model to add a domain filter that only displays customer contacts in the tree view.

from odoo import models, fields, API

class ResPartner(models.Model):

    _inherit = 'res.partner'

    # Adding a method to return a domain that filters out users and employees

    @api.model

    def _search_default_customer(self):

        return [('customer_rank', '>', 0), ('employee', '=', False), ('user_ids', '=', False)]

    @api.model

    def fields_view_get(self, view_id=None, view_type='form', toolbar=False, submenu=False):

        res = super(ResPartner, self).fields_view_get(view_id=view_id, view_type=view_type, toolbar=toolbar, submenu=submenu)

        if view_type == 'tree':

            doc = etree.XML(res['arch'])

            for node in doc.xpath("//tree"):

                node.set('domain', "[('customer_rank', '>', 0), ('employee', '=', False), ('user_ids', '=', False)]")

            res['arch'] = etree.tostring(doc, encoding='unicode')

        return res

You can also customize the tree view directly in XML by adding a domain to filter out non-customer contacts.

<record id="view_partner_tree_customer_only" model="ir.ui.view">
<field name="name">res.partner.tree.customer.only</field>
<field name="model">res.partner</field>
    <field name="arch" type="xml">
        <tree string="Customers" domain="[('customer_rank', '>', 0), ('employee', '=', False), ('user_ids', '=', False)]">
            <field name="name"/>
            <field name="phone"/>
            <field name="email"/>
            <field name="city"/>
            <field name="country_id"/>
        </tree>
    </field>
</record>

To ensure this customized view is used by default, you can override the existing tree view for res.partner.

<record id="base.view_partner_tree" model="ir.ui.view">
<field name="name">res.partner.tree</field>
<field name="model">res.partner</field>
    <field name="inherit_id" ref="base.view_partner_tree"/>
    <field name="arch" type="xml">
        <tree position="attributes">
<attribute name="domain">[('customer_rank', '>', 0), ('employee', '=', False), ('user_ids', '=', False)]</attribute>
        </tree>
    </field>
</record>

Hope it helps

Hi Sheetal, 

Kindly check this custom-built Odoo application for "Hide Contact and Employee" 

https://apps.odoo.com/apps/modules/17.0/contact_hr_rule

Hope it helps! 

Hi shital, 

you could add the domain is_company=true fo show companys only.

{ record id="contacts.action_contacts" model="ir.actions.act_window" }
	{ field name="domain" }[("is_company","=",True)),("maybe_some_other_domains","=",False)]{ /field }
{ /record }

Note: you'll have to remove the Filter "Individual", too as long you want to hide them here, too.

regards