diff --git a/partner_stage/README.rst b/partner_stage/README.rst
index 427777f322e9..ddc528e36166 100644
--- a/partner_stage/README.rst
+++ b/partner_stage/README.rst
@@ -72,6 +72,8 @@ Contributors
 
    -  Maksym Yankin maksym.yankin@camptocamp.com
 
+-  Bert Van Groenendael <bert.vangroenendael@dynapps.eu>
+
 Maintainers
 -----------
 
diff --git a/partner_stage/readme/CONTRIBUTORS.md b/partner_stage/readme/CONTRIBUTORS.md
index 43a0e032f234..053025a6784f 100644
--- a/partner_stage/readme/CONTRIBUTORS.md
+++ b/partner_stage/readme/CONTRIBUTORS.md
@@ -3,3 +3,5 @@
 * `Camptocamp <https://www.camptocamp.com>`__:
 
   * Maksym Yankin <maksym.yankin@camptocamp.com>
+
+- Bert Van Groenendael \<<bert.vangroenendael@dynapps.eu>\>
diff --git a/partner_stage/security/ir.model.access.csv b/partner_stage/security/ir.model.access.csv
index a8c5a47e1129..8dde3cfefb47 100644
--- a/partner_stage/security/ir.model.access.csv
+++ b/partner_stage/security/ir.model.access.csv
@@ -1,3 +1,3 @@
 "id","name","model_id:id","group_id:id","perm_read","perm_write","perm_create","perm_unlink"
 "access_partner_stage_edit","access_partner_stage_edit","model_res_partner_stage","base.group_system",1,1,1,1
-"access_partner_stage_read","access_partner_stage_read","model_res_partner_stage",,1,0,0,0
+"access_partner_stage_read","access_partner_stage_read","model_res_partner_stage","base.group_user",1,0,0,0
diff --git a/partner_stage/static/description/index.html b/partner_stage/static/description/index.html
index 47f7e19cf38f..55186d9f92c8 100644
--- a/partner_stage/static/description/index.html
+++ b/partner_stage/static/description/index.html
@@ -416,6 +416,7 @@ <h2><a class="toc-backref" href="#toc-entry-5">Contributors</a></h2>
 <li>Maksym Yankin <a class="reference external" href="mailto:maksym.yankin&#64;camptocamp.com">maksym.yankin&#64;camptocamp.com</a></li>
 </ul>
 </li>
+<li>Bert Van Groenendael &lt;<a class="reference external" href="mailto:bert.vangroenendael&#64;dynapps.eu">bert.vangroenendael&#64;dynapps.eu</a>&gt;</li>
 </ul>
 </div>
 <div class="section" id="maintainers">
diff --git a/partner_stage/tests/test_partner_stage.py b/partner_stage/tests/test_partner_stage.py
index 6c6eff0b5910..fc99fd58c2bf 100644
--- a/partner_stage/tests/test_partner_stage.py
+++ b/partner_stage/tests/test_partner_stage.py
@@ -1,9 +1,10 @@
 # Copyright 2021 Open Source Integrators
 # License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).
-
 from odoo.exceptions import ValidationError
 from odoo.tests.common import TransactionCase
 
+from .. import post_init_hook
+
 
 class TestPartnerStage(TransactionCase):
     @classmethod
@@ -12,13 +13,66 @@ def setUpClass(cls):
         cls.Stage = cls.env["res.partner.stage"]
         cls.Partner = cls.env["res.partner"]
 
-    def test_01_partner_stage(self):
+        # Create some test partners without a stage
+        cls.partner_1 = cls.env["res.partner"].create(
+            {
+                "name": "Partner 1",
+                "stage_id": False,
+            }
+        )
+        cls.partner_2 = cls.env["res.partner"].create(
+            {
+                "name": "Partner 2",
+                "stage_id": False,
+            }
+        )
+
+    def test_01_post_init_hook(self):
+        """Test post_init_hook sets the default stage on partners without stage_id"""
+
+        # Ensure partners initially have no stage
+        self.assertFalse(self.partner_1.stage_id)
+        self.assertFalse(self.partner_2.stage_id)
+
+        post_init_hook(self.env)
+
+        # Reload the partners from the database to get the updated values
+        self.partner_1.invalidate_recordset()
+        self.partner_2.invalidate_recordset()
+
+        # Check if partners' stages have been updated
+        self.assertEqual(
+            self.partner_1.stage_id, self.env.ref("partner_stage.partner_stage_active")
+        )
+        self.assertEqual(
+            self.partner_2.stage_id, self.env.ref("partner_stage.partner_stage_active")
+        )
+        self.assertEqual(self.partner_1.stage_id.state, "confirmed")
+        self.assertEqual(self.partner_2.stage_id.state, "confirmed")
+
+        post_init_hook(self.env)
+
+        # Reload the partners from the database to get the updated values
+        self.partner_1.invalidate_recordset()
+        self.partner_2.invalidate_recordset()
+
+        # Check if partners' stages have been updated
+        self.assertEqual(
+            self.partner_1.stage_id, self.env.ref("partner_stage.partner_stage_active")
+        )
+        self.assertEqual(
+            self.partner_2.stage_id, self.env.ref("partner_stage.partner_stage_active")
+        )
+        self.assertEqual(self.partner_1.stage_id.state, "confirmed")
+        self.assertEqual(self.partner_2.stage_id.state, "confirmed")
+
+    def test_02_partner_stage(self):
         default_stage = self.env.ref("partner_stage.partner_stage_active")
         new_partner = self.Partner.create({"name": "A Partner"})
         self.assertTrue(new_partner.stage_id, default_stage)
         states = new_partner._read_group_stage_id(self.Stage, [], None)
         self.assertTrue(states.ids, [1, 2, 3])
 
-    def test_02_stage_default_constraint(self):
+    def test_03_stage_default_constraint(self):
         with self.assertRaises(ValidationError):
             self.Stage.create({"name": "Another Default Stage", "is_default": True})
diff --git a/partner_stage/views/res_partner_stage_views.xml b/partner_stage/views/res_partner_stage_views.xml
index 2ddb021bf432..abb062fb2bb2 100644
--- a/partner_stage/views/res_partner_stage_views.xml
+++ b/partner_stage/views/res_partner_stage_views.xml
@@ -31,20 +31,20 @@
     <record id="view_partner_stage_tree" model="ir.ui.view">
         <field name="model">res.partner.stage</field>
         <field name="arch" type="xml">
-            <tree>
+            <list>
                 <field name="sequence" widget="handle" />
                 <field name="name" />
                 <field name="state" />
                 <field name="code" />
                 <field name="description" />
-            </tree>
+            </list>
         </field>
     </record>
 
     <record model="ir.actions.act_window" id="action_partner_stage">
         <field name="name">Stage</field>
         <field name="res_model">res.partner.stage</field>
-        <field name="view_mode">tree,form</field>
+        <field name="view_mode">list,form</field>
     </record>
 
     <record model="ir.ui.menu" id="menu_partner_stage">