diff --git a/joint_buying_product/__manifest__.py b/joint_buying_product/__manifest__.py
index d4bc7aac..b1c3322b 100644
--- a/joint_buying_product/__manifest__.py
+++ b/joint_buying_product/__manifest__.py
@@ -3,7 +3,7 @@
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 {
     "name": "Joint Buying - Products",
-    "version": "12.0.5.0.1",
+    "version": "12.0.6.0.0",
     "category": "GRAP - Logistics",
     "author": "GRAP",
     "website": "https://github.com/grap/odoo-addons-logistics",
diff --git a/joint_buying_product/migrations/12.0.6.0.0/post-migration.py b/joint_buying_product/migrations/12.0.6.0.0/post-migration.py
new file mode 100644
index 00000000..c7e94ae6
--- /dev/null
+++ b/joint_buying_product/migrations/12.0.6.0.0/post-migration.py
@@ -0,0 +1,58 @@
+# Copyright (C) 2024-Today: GRAP (http://www.grap.coop)
+# @author: Sylvain LE GAL (https://twitter.com/legalsylvain)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+import logging
+
+from openupgradelib import openupgrade
+
+_logger = logging.getLogger(__name__)
+
+
+@openupgrade.migrate()
+def migrate(env, version):
+    JointBuyingOrder = env["joint.buying.purchase.order"]
+
+    # Get null orders deposited or closed
+    # that still have a transport request related
+    openupgrade.logged_query(
+        env.cr,
+        """
+        SELECT po.id
+        FROM joint_buying_transport_request tr
+        INNER JOIN joint_buying_purchase_order po
+            ON po.id = tr.order_id
+        WHERE po.state IN ('deposited', 'closed')
+        AND po.amount_untaxed = 0.0;
+        """,
+    )
+
+    order_ids = [x[0] for x in env.cr.fetchall()]
+
+    _logger.info(f"Unlink Transport Requests for orders {order_ids} ...")
+    JointBuyingOrder.browse(order_ids)._hook_state_changed()
+
+    # Get NOT null recent orders
+    # that don't have a transport request related
+    openupgrade.logged_query(
+        env.cr,
+        """
+    SELECT
+        po.id,
+        po.create_date,
+        po.state,
+        po.amount_untaxed
+    FROM joint_buying_purchase_order po
+    WHERE po.id not in (
+        SELECT order_id from joint_buying_transport_request
+        WHERE order_id is not null
+    )
+    AND po.deposit_partner_id != po.delivery_partner_id
+    AND po.amount_untaxed > 0.0 AND po.deposit_date > '2024-01-01';
+    """,
+    )
+
+    order_ids = [x[0] for x in env.cr.fetchall()]
+
+    _logger.info(f"Create Transport Requests for orders {order_ids} ...")
+    JointBuyingOrder.browse(order_ids)._hook_state_changed()
diff --git a/joint_buying_product/models/joint_buying_purchase_order.py b/joint_buying_product/models/joint_buying_purchase_order.py
index 7ac62091..737acb72 100644
--- a/joint_buying_product/models/joint_buying_purchase_order.py
+++ b/joint_buying_product/models/joint_buying_purchase_order.py
@@ -175,6 +175,7 @@ class JointBuyingPurchaseOrder(models.Model):
     amount_untaxed = fields.Float(
         string="Total Untaxed Amount",
         compute="_compute_amount",
+        track_visibility=True,
         store=True,
         digits=dp.get_precision("Product Price"),
     )
diff --git a/joint_buying_product/models/joint_buying_purchase_order_line.py b/joint_buying_product/models/joint_buying_purchase_order_line.py
index f6a7f918..4dc6415e 100644
--- a/joint_buying_product/models/joint_buying_purchase_order_line.py
+++ b/joint_buying_product/models/joint_buying_purchase_order_line.py
@@ -343,3 +343,13 @@ def _get_report_tour_data(self):
                 "</span>"
             ),
         }
+
+    def write(self, vals):
+        res = super().write(vals)
+        # if the related orders are closed (or deposited), and if user changed the quantity
+        # lately. (for exemple, view joint.buying.wizard.update.order.grouped), we should
+        # ensure that transport request are correctly created. (or deleted)
+        self.mapped("order_id").filtered(
+            lambda x: x.state in ["closed", "deposited"]
+        )._hook_state_changed()
+        return res
diff --git a/joint_buying_product/tests/__init__.py b/joint_buying_product/tests/__init__.py
index 4924ff7c..3aa9227c 100644
--- a/joint_buying_product/tests/__init__.py
+++ b/joint_buying_product/tests/__init__.py
@@ -8,3 +8,4 @@
 from . import test_tour_report
 from . import test_request_invalidate
 from . import test_joint_buying_transport_request_compute
+from . import test_joint_buying_wizard_update_order_grouped
diff --git a/joint_buying_product/tests/test_abstract.py b/joint_buying_product/tests/test_abstract.py
index 6ff8e2af..5affded5 100644
--- a/joint_buying_product/tests/test_abstract.py
+++ b/joint_buying_product/tests/test_abstract.py
@@ -30,12 +30,16 @@ def setUp(self):
         self.Order = self.env["joint.buying.purchase.order"]
         self.OrderLine = self.env["joint.buying.purchase.order.line"]
         self.JointBuyingWizardCreateOrder = self.env["joint.buying.wizard.create.order"]
+        self.JointBuyingWizardUpdateOrderGrouped = self.env[
+            "joint.buying.wizard.update.order.grouped"
+        ]
 
         self.company_ELD = self.env.ref("joint_buying_base.company_ELD")
         self.company_CDA = self.env.ref("joint_buying_base.company_CDA")
         self.company_CHE = self.env.ref("joint_buying_base.company_CHE")
         self.company_3PP = self.env.ref("joint_buying_base.company_3PP")
         self.company_LSE = self.env.ref("joint_buying_base.company_LSE")
+        self.company_1GG = self.env.ref("joint_buying_base.company_1GG")
 
         self.salaison_devidal = self.JointBuyingResPartner.browse(
             self.env.ref("joint_buying_base.supplier_salaison_devidal").id
@@ -56,6 +60,9 @@ def setUp(self):
         self.product_LSE_patatoe_agila = self.env.ref(
             "joint_buying_product.product_LSE_patatoe_agila"
         )
+        self.grouped_order_ronzon_past = self.env.ref(
+            "joint_buying_product.grouped_order_ronzon_past"
+        )
 
     def _create_order_grouped_salaison_devidal_by_wizard(self, user=False):
         # Use Wizard to create grouped order
diff --git a/joint_buying_product/tests/test_joint_buying_transport_request_compute.py b/joint_buying_product/tests/test_joint_buying_transport_request_compute.py
index 73a7eb58..63d597f9 100644
--- a/joint_buying_product/tests/test_joint_buying_transport_request_compute.py
+++ b/joint_buying_product/tests/test_joint_buying_transport_request_compute.py
@@ -6,15 +6,11 @@
 
 from odoo.tests import tagged
 
-from odoo.addons.joint_buying_base.tests import (
-    test_joint_buying_transport_request_compute,
-)
+from .test_abstract import TestAbstract
 
 
 @tagged("post_install", "-at_install")
-class TestJointBuyingTransportRequest(
-    test_joint_buying_transport_request_compute.TestJointBuyingTransportRequest
-):
+class TestJointBuyingTransportRequest(TestAbstract):
     def setUp(self):
         super().setUp()
 
diff --git a/joint_buying_product/tests/test_joint_buying_wizard_update_order_grouped.py b/joint_buying_product/tests/test_joint_buying_wizard_update_order_grouped.py
new file mode 100644
index 00000000..2daa65a6
--- /dev/null
+++ b/joint_buying_product/tests/test_joint_buying_wizard_update_order_grouped.py
@@ -0,0 +1,45 @@
+# Copyright (C) 2024 - Today: GRAP (http://www.grap.coop)
+# @author: Sylvain LE GAL (https://twitter.com/legalsylvain)
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
+
+
+from odoo.tests import tagged
+
+from .test_abstract import TestAbstract
+
+
+@tagged("post_install", "-at_install")
+class TestJointBuyingWizardUpdateOrderGrouped(TestAbstract):
+    def setUp(self):
+        super().setUp()
+
+    def test_01_wizard_update_order_grouped(self):
+
+        wizard = self.JointBuyingWizardUpdateOrderGrouped.with_context(
+            active_id=self.grouped_order_ronzon_past.id
+        ).create({})
+        wizard.show_all_orders = True
+        wizard.show_all_products = True
+        wizard.onchange_show_settings()
+
+        wizard.line_ids.write({"qty": 0})
+
+        self.assertEqual(
+            len(
+                self.grouped_order_ronzon_past.mapped("order_ids.transport_request_id")
+            ),
+            0,
+        )
+
+        wizard.line_ids.write({"qty": 100})
+
+        self.assertEqual(
+            len(
+                self.grouped_order_ronzon_past.mapped("order_ids.transport_request_id")
+            ),
+            len(
+                self.grouped_order_ronzon_past.mapped("order_ids").filtered(
+                    lambda x: x.deposit_partner_id != x.delivery_partner_id
+                )
+            ),
+        )