diff --git a/base_partner_ref/__init__.py b/base_partner_ref/__init__.py
new file mode 100644
index 0000000..cde864b
--- /dev/null
+++ b/base_partner_ref/__init__.py
@@ -0,0 +1,3 @@
+# -*- coding: utf-8 -*-
+
+from . import models
diff --git a/base_partner_ref/__openerp__.py b/base_partner_ref/__openerp__.py
new file mode 100644
index 0000000..1904e42
--- /dev/null
+++ b/base_partner_ref/__openerp__.py
@@ -0,0 +1,27 @@
+# -*- coding: utf-8 -*-
+# Copyright 2017-2024 Akretion France (https://www.akretion.com)
+# @author Alexis de Lattre <alexis.delattre@akretion.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+{
+    'name': 'Base Partner Reference',
+    'version': '8.0.1.0.0',
+    'category': 'Partner',
+    'license': 'AGPL-3',
+    'summary': "Improve usage of partner's Internal Reference",
+    'description': """
+Base Partner Reference
+======================
+
+* Adds Internal Reference in partner tree view
+
+* Adds Internal Reference in name_get()
+
+* Adds unicity constraint on Internal Reference
+    """,
+    'author': 'Akretion',
+    'website': 'https://github.com/akretion/odoo-usability',
+    'depends': ['base'],
+    'data': ['views/res_partner.xml'],
+    'installable': True,
+}
diff --git a/base_partner_ref/models/__init__.py b/base_partner_ref/models/__init__.py
new file mode 100644
index 0000000..f261da7
--- /dev/null
+++ b/base_partner_ref/models/__init__.py
@@ -0,0 +1,3 @@
+# -*- coding: utf-8 -*-
+
+from . import res_partner
diff --git a/base_partner_ref/models/res_partner.py b/base_partner_ref/models/res_partner.py
new file mode 100644
index 0000000..b295846
--- /dev/null
+++ b/base_partner_ref/models/res_partner.py
@@ -0,0 +1,64 @@
+# -*- coding: utf-8 -*-
+# Copyright 2017-2024 Akretion France
+# @author: Alexis de Lattre <alexis.delattre@akretion.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from openerp.osv import orm, fields
+from openerp import api
+
+
+class ResPartner(orm.Model):
+    _inherit = 'res.partner'
+
+    # copy=False on 'ref' is already in base_usability
+    _columns = {
+        # in v8, display_name is stored field
+        # so, when we inherit name_get() and use additionnal fields, we
+        # have to update the code for invalidation
+        'display_name': fields.char(store={
+            'res.partner': (lambda self, cr, uid, ids, context=None: self.search(cr, uid, [('id', 'child_of', ids)], context=dict(active_test=False)),
+                ['parent_id', 'is_company', 'name', 'ref'], 10)
+        }),
+    }
+
+    _sql_constraints = [(
+        'ref_unique',
+        'unique(ref)',
+        'A partner already exists with this internal reference!'
+        )]
+
+    def name_get(self, cr, uid, ids, context=None):
+        if context is None:
+            context = {}
+        if isinstance(ids, (int, long)):
+            ids = [ids]
+        res = []
+        for record in self.browse(cr, uid, ids, context=context):
+            name = record.name
+            # START modif of native name_get() method
+            if record.ref:
+                name = u"[%s] %s" % (record.ref, name)
+            # END modif of native name_get() method
+            if record.parent_id and not record.is_company:
+                name = "%s, %s" % (record.parent_name, name)
+            if context.get('show_address_only'):
+                name = self._display_address(cr, uid, record, without_company=True, context=context)
+            if context.get('show_address'):
+                name = name + "\n" + self._display_address(cr, uid, record, without_company=True, context=context)
+            name = name.replace('\n\n','\n')
+            name = name.replace('\n\n','\n')
+            if context.get('show_email') and record.email:
+                name = "%s <%s>" % (name, record.email)
+            res.append((record.id, name))
+        return res
+
+    @api.model
+    def name_search(self, name='', args=None, operator='ilike', limit=100):
+        if args is None:
+            args = []
+        if name and operator == 'ilike':
+            recs = self.search([('ref', '=', name)] + args, limit=limit)
+            if recs:
+                rec_childs = self.search([('id', 'child_of', recs.ids)])
+                return rec_childs.name_get()
+        return super(ResPartner, self).name_search(name=name, args=args, operator=operator, limit=limit)
diff --git a/base_partner_ref/views/res_partner.xml b/base_partner_ref/views/res_partner.xml
new file mode 100644
index 0000000..18f7a5f
--- /dev/null
+++ b/base_partner_ref/views/res_partner.xml
@@ -0,0 +1,54 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  Copyright 2017-2024 Akretion France (https://www.akretion.com/)
+  @author: Alexis de Lattre <alexis.delattre@akretion.com>
+  License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+-->
+
+<openerp>
+<data>
+
+<record id="view_partner_form" model="ir.ui.view">
+    <field name="name">Move ref in partner form to make it more visible</field>
+    <field name="model">res.partner</field>
+    <field name="inherit_id" ref="base.view_partner_form"/>
+    <field name="arch" type="xml">
+        <field name="website" position="before">
+            <field name="ref"/>
+        </field>
+        <xpath expr="//page[@name='sales_purchases']//field[@name='ref']" position="replace"/>
+    </field>
+</record>
+
+<record id="view_partner_tree" model="ir.ui.view">
+    <field name="name">Add ref in partner tree view</field>
+    <field name="model">res.partner</field>
+    <field name="inherit_id" ref="base.view_partner_tree"/>
+    <field name="arch" type="xml">
+        <!-- show name and ref in separate columns -->
+        <field name="display_name" position="after">
+            <field name="ref"/>
+            <field name="name"/>
+        </field>
+        <field name="display_name" position="attributes">
+            <attribute name="invisible">1</attribute>
+        </field>
+    </field>
+</record>
+
+<record id="res_partner_kanban_view" model="ir.ui.view">
+    <field name="name">Add ref in partner kanban view</field>
+    <field name="model">res.partner</field>
+    <field name="inherit_id" ref="base.res_partner_kanban_view"/>
+    <field name="arch" type="xml">
+        <field name="display_name" position="after">
+            <field name="ref"/>
+        </field>
+        <li t-if="record.email.raw_value" position="after">
+            <li t-if="record.ref.raw_value">Ref: <field name="ref"/></li>
+        </li>
+    </field>
+</record>
+
+</data>
+</openerp>