diff --git a/bemade_purchase_warn_supplier_overdue/__init__.py b/bemade_purchase_warn_supplier_overdue/__init__.py
new file mode 100644
index 0000000..0650744
--- /dev/null
+++ b/bemade_purchase_warn_supplier_overdue/__init__.py
@@ -0,0 +1 @@
+from . import models
diff --git a/bemade_purchase_warn_supplier_overdue/__manifest__.py b/bemade_purchase_warn_supplier_overdue/__manifest__.py
new file mode 100644
index 0000000..096faac
--- /dev/null
+++ b/bemade_purchase_warn_supplier_overdue/__manifest__.py
@@ -0,0 +1,29 @@
+{
+    'name': 'Bemade Warn Supplier Overdue',
+    'version': '1.0',
+    'summary': 'Warn supplier when overdue on purchase order confirmation',
+    'description': """
+Warn supplier when overdue on purchase order confirmation
+===================================
+This module adds a mail.message to the purchase order confirmation form when the supplier is overdue.
+""",
+    'author': 'Benoît Vézina',
+    'website': 'https://www.bemade.com',
+    'category': 'Purchases',
+    'license': 'OPL-1',
+    'depends': [
+        'purchase',
+        'account',
+        'mail',
+    ],
+    'data': [
+        'views/res_config_settings_views.xml',
+        # 'security/ir.model.access.csv',
+    ],
+    'demo': [
+        # List any demo data files here
+    ],
+    'installable': True,
+    'application': False,
+    'auto_install': False,
+}
diff --git a/bemade_purchase_warn_supplier_overdue/models/__init__.py b/bemade_purchase_warn_supplier_overdue/models/__init__.py
new file mode 100644
index 0000000..374b34a
--- /dev/null
+++ b/bemade_purchase_warn_supplier_overdue/models/__init__.py
@@ -0,0 +1,3 @@
+from . import res_company
+from . import res_config_settings
+from . import purchase_order
diff --git a/bemade_purchase_warn_supplier_overdue/models/purchase_order.py b/bemade_purchase_warn_supplier_overdue/models/purchase_order.py
new file mode 100644
index 0000000..fbd54c6
--- /dev/null
+++ b/bemade_purchase_warn_supplier_overdue/models/purchase_order.py
@@ -0,0 +1,52 @@
+from odoo import models, fields, api, _
+
+class PurchaseOrder(models.Model):
+    _inherit = 'purchase.order'
+
+    @api.model
+    def _check_supplier_overdue_invoices(self, partner):
+        """ Vérifie si le fournisseur a des factures impayées en retard """
+        overdue_invoices = self.env['account.move'].search([
+            ('partner_id', '=', partner.id),
+            ('move_type', '=', 'in_invoice'),  # Facture fournisseur
+            ('invoice_date_due', '<', fields.Date.today()),  # Date d'échéance dépassée
+            ('payment_state', '!=', 'paid')  # Non payée
+        ])
+        return len(overdue_invoices) > 0
+
+    def button_confirm(self):
+        """ Surcharger la confirmation de commande pour intégrer l'avertissement """
+        # Appel de la méthode standard de confirmation de commande
+        res = super(PurchaseOrder, self).button_confirm()
+
+        for order in self:
+            supplier = order.partner_id
+            company = order.company_id
+
+            # Vérifier si la fonctionnalité d'avertissement est activée
+            if company.warn_supplier_overdue:
+                # Vérifier si l'avertissement s'applique à tous les fournisseurs ou seulement à certains
+                if company.warn_supplier_scope == 'all' or (company.warn_supplier_scope == 'specific' and supplier in company.warn_supplier_specific_ids):
+                    if self._check_supplier_overdue_invoices(supplier):
+                        # Déterminer quel utilisateur doit être averti
+                        if company.warn_supplier_overdue_user_type == 'current':
+                            user_to_notify = self.env.user
+                        elif company.warn_supplier_overdue_user_type == 'specific':
+                            user_to_notify = company.warn_supplier_overdue_user_id
+                        else:
+                            user_to_notify = self.env.user  # Par défaut, utilisateur courant
+
+                        if user_to_notify:
+                            # Création de l'activité de type "To-Do" (mail.activity)
+                            activity_vals = {
+                                'res_model_id': self.env['ir.model'].search([('model', '=', 'purchase.order')], limit=1).id,
+                                'res_id': order.id,  # L'ID du bon de commande
+                                'activity_type_id': self.env.ref('mail.mail_activity_data_todo').id,  # Type d'activité "To-Do"
+                                'summary': _('Overdue Invoices for Supplier %s') % supplier.name,
+                                'note': _('The supplier %s has overdue invoices. Please follow up before proceeding with the order %s.') % (supplier.name, order.name),
+                                'user_id': user_to_notify.id,  # Utilisateur assigné à l'activité
+                                'date_deadline': fields.Date.today()  # La date limite de l'activité
+                            }
+
+                            self.env['mail.activity'].create(activity_vals)
+        return res
\ No newline at end of file
diff --git a/bemade_purchase_warn_supplier_overdue/models/res_company.py b/bemade_purchase_warn_supplier_overdue/models/res_company.py
new file mode 100644
index 0000000..2a2cee3
--- /dev/null
+++ b/bemade_purchase_warn_supplier_overdue/models/res_company.py
@@ -0,0 +1,45 @@
+from odoo import models, fields, api
+
+
+class Company(models.Model):
+    _inherit = 'res.company'
+
+    warn_supplier_overdue = fields.Boolean(
+        string='Warn supplier when overdue',
+        default=True,
+        help='Warn user on purchase with overdue vendor',
+    )
+
+    warn_supplier_overdue_user_type = fields.Selection(
+        string='User Warned Type',
+        selection=[
+            ('current', 'Current User'),
+            ('specific', 'Specific User'),
+        ],
+        default='current',
+        help='Type of user to warn when supplier is overdue',
+    )
+
+    warn_supplier_overdue_user_id = fields.Many2one(
+        string='User',
+        comodel_name='res.users',
+        help='Specific User to warn when supplier is overdue',
+    )
+
+    warn_supplier_scope = fields.Selection(
+        string='Warn Scope',
+        selection=[
+            ('all', 'All Vendors'),
+            ('specific', 'Specific Vendors'),
+        ],
+        default='all',
+        help='Choose whether to apply overdue warnings to all vendors or only to specific vendors',
+    )
+
+    warn_supplier_specific_ids = fields.Many2many(
+        comodel_name='res.partner',
+        domain=[('supplier_rank', '>', 0)],
+        string='Specific Vendors',
+        help='Select specific vendors to apply overdue invoice warnings',
+    )
+
diff --git a/bemade_purchase_warn_supplier_overdue/models/res_config_settings.py b/bemade_purchase_warn_supplier_overdue/models/res_config_settings.py
new file mode 100644
index 0000000..6cbdf7a
--- /dev/null
+++ b/bemade_purchase_warn_supplier_overdue/models/res_config_settings.py
@@ -0,0 +1,36 @@
+from odoo import models, fields
+
+class ResConfigSettings(models.TransientModel):
+    _inherit = 'res.config.settings'
+
+    warn_supplier_overdue = fields.Boolean(
+        string='Warn supplier when overdue',
+        related='company_id.warn_supplier_overdue',
+        readonly=False,
+    )
+
+    warn_supplier_overdue_user_type = fields.Selection(
+        string='User Warned Type',
+        related='company_id.warn_supplier_overdue_user_type',
+        readonly=False,
+    )
+
+    warn_supplier_overdue_user_id = fields.Many2one(
+        string='User to warn',
+        comodel_name='res.users',
+        related='company_id.warn_supplier_overdue_user_id',
+        readonly=False,
+    )
+
+    warn_supplier_scope = fields.Selection(
+        string='Warn Scope',
+        related='company_id.warn_supplier_scope',
+        readonly=False,
+    )
+
+    warn_supplier_specific_ids = fields.Many2many(
+        string='Specific Vendors',
+        comodel_name='res.partner',
+        related='company_id.warn_supplier_specific_ids',
+        readonly=False,
+    )
\ No newline at end of file
diff --git a/bemade_purchase_warn_supplier_overdue/tests/__init__.py b/bemade_purchase_warn_supplier_overdue/tests/__init__.py
new file mode 100644
index 0000000..cb1d3f0
--- /dev/null
+++ b/bemade_purchase_warn_supplier_overdue/tests/__init__.py
@@ -0,0 +1 @@
+from . import test_purchase_order_overdue
\ No newline at end of file
diff --git a/bemade_purchase_warn_supplier_overdue/tests/test_purchase_order_overdue.py b/bemade_purchase_warn_supplier_overdue/tests/test_purchase_order_overdue.py
new file mode 100644
index 0000000..88d29c1
--- /dev/null
+++ b/bemade_purchase_warn_supplier_overdue/tests/test_purchase_order_overdue.py
@@ -0,0 +1,105 @@
+from odoo.tests import common
+from odoo import fields
+from odoo.exceptions import ValidationError
+
+
+class TestPurchaseOrderOverdue(common.TransactionCase):
+
+    def setUp(self):
+        super(TestPurchaseOrderOverdue, self).setUp()
+
+        # Setup d'une société avec des paramètres personnalisés
+        self.company = self.env['res.company'].create({
+            'name': 'Test Company',
+            'warn_supplier_overdue': True,
+            'warn_supplier_overdue_user_type': 'specific',
+            'warn_supplier_overdue_user_id': self.env.user.id,  # L'utilisateur courant
+            'warn_supplier_scope': 'specific',
+        })
+
+        # Créer un partenaire fournisseur avec des factures impayées
+        self.supplier = self.env['res.partner'].create({
+            'name': 'Test Supplier',
+            'supplier_rank': 1,
+        })
+
+        # Créer une facture fournisseur impayée pour ce fournisseur
+        self.invoice = self.env['account.move'].create({
+            'partner_id': self.supplier.id,
+            'move_type': 'in_invoice',
+            'invoice_date_due': fields.Date.today(),
+            'company_id': self.company.id,
+        })
+
+        # Créer un bon de commande pour ce fournisseur
+        self.purchase_order = self.env['purchase.order'].create({
+            'partner_id': self.supplier.id,
+            'company_id': self.company.id,
+        })
+
+    def test_supplier_overdue_invoice_activity_created(self):
+        """ Teste la création d'une activité 'To-Do' lorsque le fournisseur a des factures en retard """
+        # Confirmer la commande d'achat et vérifier la création de l'activité
+        self.purchase_order.button_confirm()
+
+        activities = self.env['mail.activity'].search([
+            ('res_model', '=', 'purchase.order'),
+            ('res_id', '=', self.purchase_order.id),
+            ('user_id', '=', self.env.user.id)
+        ])
+
+        # Vérifier qu'une activité a été créée
+        self.assertEqual(len(activities), 1, 'No activity was created for the overdue supplier.')
+
+        # Vérifier le contenu de l'activité
+        activity = activities[0]
+        self.assertEqual(activity.summary, 'Overdue Invoices for Supplier %s' % self.supplier.name)
+        self.assertIn(self.supplier.name, activity.note)
+        self.assertIn(self.purchase_order.name, activity.note)
+
+    def test_no_activity_for_non_overdue_suppliers(self):
+        """ Teste qu'aucune activité n'est créée si le fournisseur n'a pas de factures impayées """
+        # Marquer la facture comme payée pour annuler l'état de retard
+        self.invoice.action_post()
+        self.invoice.button_mark_as_paid()
+
+        # Confirmer la commande d'achat
+        self.purchase_order.button_confirm()
+
+        # Vérifier qu'aucune activité n'a été créée
+        activities = self.env['mail.activity'].search([
+            ('res_model', '=', 'purchase.order'),
+            ('res_id', '=', self.purchase_order.id),
+        ])
+        self.assertEqual(len(activities), 0, 'An activity was created despite no overdue invoices.')
+
+    def test_activity_for_specific_vendors_only(self):
+        """ Teste que l'activité est créée seulement pour les fournisseurs spécifiques """
+        # Ajouter le fournisseur à la liste des fournisseurs spécifiques
+        self.company.write({'warn_supplier_specific_ids': [(4, self.supplier.id)]})
+
+        # Confirmer la commande d'achat
+        self.purchase_order.button_confirm()
+
+        # Vérifier que l'activité a été créée
+        activities = self.env['mail.activity'].search([
+            ('res_model', '=', 'purchase.order'),
+            ('res_id', '=', self.purchase_order.id),
+            ('user_id', '=', self.env.user.id)
+        ])
+        self.assertEqual(len(activities), 1, 'No activity was created for the overdue supplier.')
+
+    def test_no_activity_for_non_specific_vendors(self):
+        """ Teste qu'aucune activité n'est créée si le fournisseur n'est pas dans la liste des fournisseurs spécifiques """
+        # Ne pas inclure le fournisseur dans la liste des fournisseurs spécifiques
+        self.company.write({'warn_supplier_specific_ids': [(3, self.supplier.id)]})  # Retirer le fournisseur
+
+        # Confirmer la commande d'achat
+        self.purchase_order.button_confirm()
+
+        # Vérifier qu'aucune activité n'a été créée
+        activities = self.env['mail.activity'].search([
+            ('res_model', '=', 'purchase.order'),
+            ('res_id', '=', self.purchase_order.id),
+        ])
+        self.assertEqual(len(activities), 0, 'An activity was created for a non-specific supplier.')
\ No newline at end of file
diff --git a/bemade_purchase_warn_supplier_overdue/views/res_config_settings_views.xml b/bemade_purchase_warn_supplier_overdue/views/res_config_settings_views.xml
new file mode 100644
index 0000000..6b92fc1
--- /dev/null
+++ b/bemade_purchase_warn_supplier_overdue/views/res_config_settings_views.xml
@@ -0,0 +1,70 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<odoo>
+    <record id="res_config_settings_view_form_purchase_supplier_overdue" model="ir.ui.view">
+        <field name="name">res.config.settings.view.form.inherit.purchase.overdue</field>
+        <field name="model">res.config.settings</field>
+        <field name="priority" eval="30"/>
+        <field name="inherit_id" ref="purchase.res_config_settings_view_form_purchase"/>
+        <field name="arch" type="xml">
+            <xpath expr="//app[@name='purchase']" position="inside">
+                <block title="Supplier Overdue" name="vendor_setting_overdue">
+                    <!-- Avertissement lors de la confirmation d'un bon de commande pour les fournisseurs en retard -->
+                    <setting
+                        id="warn_supplier_overdue_settings"
+                        help="Warn a user on purchase order confirmation for overdue suppliers"
+                    >
+                        <field name="warn_supplier_overdue"/>
+                    </setting>
+
+                    <!-- Type d'utilisateur à avertir (utilisateur courant ou spécifique) -->
+                    <setting
+                        id="warn_supplier_overdue_user_type_settings"
+                        help="Assign the To Do to a specific user or the current user"
+                        invisible="not warn_supplier_overdue"
+                    >
+                        <field name="warn_supplier_overdue_user_type"/>
+                    </setting>
+
+                    <!-- Utilisateur spécifique à avertir (apparaît si 'specific' est sélectionné) -->
+                    <setting
+                        id="warn_supplier_overdue_user_settings"
+                        help="Specific user to warn when PO is confirmed with a supplier who has overdue bills"
+                        invisible="warn_supplier_overdue_user_type != 'specific' or not warn_supplier_overdue"
+                    >
+                        <field name="warn_supplier_overdue_user_id"/>
+                    </setting>
+
+                    <!-- Nouveau champ : Portée de l'avertissement (tous les fournisseurs ou fournisseurs spécifiques) -->
+                    <setting
+                        id="warn_supplier_scope_settings"
+                        help="Choose whether to apply the overdue warning to all vendors or specific vendors"
+                        invisible="not warn_supplier_overdue"
+                    >
+                        <field name="warn_supplier_scope"/>
+                    </setting>
+
+                    <!-- Nouveau champ : Sélection de fournisseurs spécifiques (apparaît si 'specific' est sélectionné) -->
+                    <setting
+                        id="warn_supplier_specific_ids_settings"
+                        help="Select specific vendors to apply overdue warnings if applicable"
+                        invisible="warn_supplier_scope != 'specific' or not warn_supplier_overdue"
+                    >
+                        <field name="warn_supplier_specific_ids" widget="many2many_tags"/>
+                    </setting>
+                </block>
+            </xpath>
+        </field>
+    </record>
+
+    <!-- Ajout de l'entrée dans le menu Configuration -->
+    <record id="res_config_settings_action_supplier_overdue" model="ir.actions.act_window">
+        <field name="name">Supplier Overdue Settings</field>
+        <field name="res_model">res.config.settings</field>
+        <field name="view_mode">form</field>
+        <field name="target">new</field>
+    </record>
+
+    <menuitem id="menu_supplier_overdue_settings" name="Supplier Overdue Settings"
+        parent="purchase.menu_purchase_config" action="res_config_settings_action_supplier_overdue"
+        sequence="10"/>
+</odoo>
\ No newline at end of file