diff --git a/modules/sale_supply/CHANGELOG b/modules/sale_supply/CHANGELOG
index ccfcea9b43..62be66a37f 100644
--- a/modules/sale_supply/CHANGELOG
+++ b/modules/sale_supply/CHANGELOG
@@ -1,3 +1,5 @@
+* Notify when product is supplied on sale and has purchase order point
+
 Version 6.6.0 - 2022-10-31
 --------------------------
 * Bug fixes (see mercurial logs for details)
diff --git a/modules/sale_supply/__init__.py b/modules/sale_supply/__init__.py
index c5c21fb081..bdb0dfb946 100644
--- a/modules/sale_supply/__init__.py
+++ b/modules/sale_supply/__init__.py
@@ -19,3 +19,6 @@ def register():
     Pool.register(
         purchase.HandlePurchaseCancellationException,
         module='sale_supply', type_='wizard')
+    Pool.register(
+        stock.OrderPoint,
+        module='sale_supply', type_='model', depends=['stock_supply'])
diff --git a/modules/sale_supply/message.xml b/modules/sale_supply/message.xml
new file mode 100644
index 0000000000..6ed9fb317f
--- /dev/null
+++ b/modules/sale_supply/message.xml
@@ -0,0 +1,13 @@
+<?xml version="1.0"?>
+<!-- This file is part of Tryton.  The COPYRIGHT file at the top level of
+this repository contains the full copyright notices and license terms. -->
+<tryton>
+    <data grouped="1">
+        <record model="ir.message" id="msg_order_point_product_supply_on_sale">
+            <field name="text">The product "%(product)s" is supplied on sale.</field>
+        </record>
+        <record model="ir.message" id="msg_template_supply_on_sale_order_point">
+            <field name="text">The product has purchase order points "%(order_points)s" defined.</field>
+        </record>
+    </data>
+</tryton>
diff --git a/modules/sale_supply/product.py b/modules/sale_supply/product.py
index 08537ed277..c369bcf061 100644
--- a/modules/sale_supply/product.py
+++ b/modules/sale_supply/product.py
@@ -1,7 +1,9 @@
 # This file is part of Tryton.  The COPYRIGHT file at the top level of
 # this repository contains the full copyright notices and license terms.
+
+from trytond.i18n import gettext
 from trytond.model import fields
-from trytond.pool import PoolMeta
+from trytond.pool import Pool, PoolMeta
 from trytond.pyson import Eval
 
 
@@ -13,6 +15,33 @@ class Template(metaclass=PoolMeta):
             'invisible': ~Eval('purchasable') | ~Eval('salable'),
             })
 
+    @fields.depends(methods=['_notify_order_point'])
+    def on_change_notify(self):
+        notifications = super().on_change_notify()
+        notifications.extend(self._notify_order_point())
+        return notifications
+
+    @fields.depends('id', 'supply_on_sale')
+    def _notify_order_point(self):
+        pool = Pool()
+        try:
+            OrderPoint = pool.get('stock.order_point')
+        except KeyError:
+            return
+        if self.supply_on_sale and self.id is not None and self.id >= 0:
+            order_points = OrderPoint.search([
+                    ('product.template.id', '=', self.id),
+                    ('type', '=', 'purchase'),
+                    ], limit=6)
+            if order_points:
+                names = ', '.join(o.rec_name for o in order_points[:5])
+                if len(order_points) > 5:
+                    names + '...'
+                yield ('warning', gettext(
+                        'sale_supply'
+                        '.msg_template_supply_on_sale_order_point',
+                        order_points=names))
+
 
 class Product(metaclass=PoolMeta):
     __name__ = 'product.product'
diff --git a/modules/sale_supply/setup.py b/modules/sale_supply/setup.py
index eac89b0d62..f7d5a0bf79 100755
--- a/modules/sale_supply/setup.py
+++ b/modules/sale_supply/setup.py
@@ -47,7 +47,10 @@ for dep in info.get('depends', []):
         requires.append(get_require_version('trytond_%s' % dep))
 requires.append(get_require_version('trytond'))
 
-tests_require = [get_require_version('proteus')]
+tests_require = [
+    get_require_version('proteus'),
+    get_require_version('trytond_stock_supply'),
+    ]
 
 setup(name=name,
     version=version,
diff --git a/modules/sale_supply/stock.py b/modules/sale_supply/stock.py
index 2dda3b319e..08d2858990 100644
--- a/modules/sale_supply/stock.py
+++ b/modules/sale_supply/stock.py
@@ -2,7 +2,8 @@
 # this repository contains the full copyright notices and license terms.
 from collections import defaultdict
 
-from trytond.model import Model, ModelView, Workflow
+from trytond.i18n import gettext
+from trytond.model import Model, ModelView, Workflow, fields
 from trytond.pool import Pool, PoolMeta
 
 
@@ -56,3 +57,22 @@ class ShipmentIn(metaclass=PoolMeta):
         for sale_line in sale_lines:
             sale_line.assign_supplied(
                 pbl[sale_line.product], grouping=grouping)
+
+
+class OrderPoint(metaclass=PoolMeta):
+    __name__ = 'stock.order_point'
+
+    @fields.depends(methods=['_notify_product_supply_on_sale'])
+    def on_change_notify(self):
+        notifications = super().on_change_notify()
+        notifications.extend(self._notify_product_supply_on_sale())
+        return notifications
+
+    @fields.depends('type', 'product')
+    def _notify_product_supply_on_sale(self):
+        if (self.type == 'purchase'
+                and self.product and self.product.supply_on_sale):
+            yield ('warning', gettext(
+                    'sale_supply'
+                    '.msg_order_point_product_supply_on_sale',
+                    product=self.product.rec_name))
diff --git a/modules/sale_supply/tests/scenario_sale_supply_notifications.rst b/modules/sale_supply/tests/scenario_sale_supply_notifications.rst
new file mode 100644
index 0000000000..10e28461f9
--- /dev/null
+++ b/modules/sale_supply/tests/scenario_sale_supply_notifications.rst
@@ -0,0 +1,58 @@
+=========================
+Sale Supply Notifications
+=========================
+
+Imports::
+
+    >>> from proteus import Model
+
+    >>> from trytond.tests.tools import activate_modules
+    >>> from trytond.modules.company.tests.tools import create_company
+
+Activate modules::
+
+    >>> config = activate_modules(['sale_supply', 'stock_supply'])
+
+    >>> Location = Model.get('stock.location')
+    >>> OrderPoint = Model.get('stock.order_point')
+    >>> ProductTemplate = Model.get('product.template')
+    >>> UoM = Model.get('product.uom')
+
+Create company::
+
+    >>> _ = create_company()
+
+Get locations::
+
+    >>> warehouse_location, = Location.find([('type', '=', 'warehouse')])
+
+Create product::
+
+    >>> unit, = UoM.find([('name', '=', "Unit")])
+
+    >>> product_template = ProductTemplate()
+    >>> product_template.name = "Product"
+    >>> product_template.type = 'goods'
+    >>> product_template.default_uom = unit
+    >>> product_template.purchasable = True
+    >>> product_template.salable = True
+    >>> product_template.supply_on_sale = True
+    >>> product_template.save()
+    >>> product, = product_template.products
+
+Create order point::
+
+    >>> order_point = OrderPoint()
+    >>> order_point.product = product
+    >>> order_point.warehouse_location = warehouse_location
+    >>> order_point.type = 'purchase'
+    >>> order_point.min_quantity = 0
+    >>> order_point.target_quantity = 5
+    >>> order_point.save()
+
+Check notifications::
+
+    >>> len(product_template.notifications())
+    1
+    >>> len(order_point.notifications())
+    1
diff --git a/modules/sale_supply/tests/test_module.py b/modules/sale_supply/tests/test_module.py
index a26dafb443..384e4252da 100644
--- a/modules/sale_supply/tests/test_module.py
+++ b/modules/sale_supply/tests/test_module.py
@@ -7,6 +7,7 @@ from trytond.tests.test_tryton import ModuleTestCase
 class SaleSupplyTestCase(ModuleTestCase):
     'Test SaleSupply module'
     module = 'sale_supply'
+    extras = ['stock_supply']
 
 
 del ModuleTestCase
diff --git a/modules/sale_supply/tryton.cfg b/modules/sale_supply/tryton.cfg
index 1c54bdf9a3..c9b1e79107 100644
--- a/modules/sale_supply/tryton.cfg
+++ b/modules/sale_supply/tryton.cfg
@@ -6,6 +6,9 @@ depends:
     purchase_request
     sale
     stock
+extras_depend:
+    stock_supply
 xml:
     product.xml
     sale.xml
+    message.xml