diff --git a/product_code_unique/models/__init__.py b/product_code_unique/models/__init__.py
index 2c3319d8df1..6340b36bc8a 100644
--- a/product_code_unique/models/__init__.py
+++ b/product_code_unique/models/__init__.py
@@ -1,4 +1,5 @@
 # Copyright (C) 2018 - TODAY, Open Source Integrators
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
-from . import product
+from . import product_product
+from . import product_template
diff --git a/product_code_unique/models/product.py b/product_code_unique/models/product_product.py
similarity index 78%
rename from product_code_unique/models/product.py
rename to product_code_unique/models/product_product.py
index 46744403d12..51e508aef24 100644
--- a/product_code_unique/models/product.py
+++ b/product_code_unique/models/product_product.py
@@ -1,7 +1,7 @@
 # Copyright (C) 2018 - TODAY, Open Source Integrators
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
-from odoo import models
+from odoo import api, models
 
 
 class ProductProduct(models.Model):
@@ -14,3 +14,7 @@ class ProductProduct(models.Model):
             "Internal Reference must be unique across the database!",
         )
     ]
+
+    @api.onchange()
+    def _onchange_default_code(self):
+        return
diff --git a/product_code_unique/models/product_template.py b/product_code_unique/models/product_template.py
new file mode 100644
index 00000000000..7be9d5416f4
--- /dev/null
+++ b/product_code_unique/models/product_template.py
@@ -0,0 +1,12 @@
+# Copyright 2026 ACSONE SA/NV
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import api, models
+
+
+class ProductTemplate(models.Model):
+    _inherit = "product.template"
+
+    @api.onchange()
+    def _onchange_default_code(self):
+        return
diff --git a/product_code_unique/readme/ROADMAP.md b/product_code_unique/readme/ROADMAP.md
deleted file mode 100644
index b06fa45223c..00000000000
--- a/product_code_unique/readme/ROADMAP.md
+++ /dev/null
@@ -1,4 +0,0 @@
-- Avoid duplicate warnings. Odoo has a warning for duplicate "Internal
-  Reference" of its own (it doesn't block from saving). Now both
-  warnings are displayed when trying to save a duplicate "Internal
-  Reference".