diff --git a/addons/stock/models/stock_picking.py b/addons/stock/models/stock_picking.py
index 2e173d5634f..58756805671 100644
--- a/addons/stock/models/stock_picking.py
+++ b/addons/stock/models/stock_picking.py
@@ -29,7 +29,7 @@ class PickingType(models.Model):
     sequence = fields.Integer('Sequence', help="Used to order the 'All Operations' kanban view")
     sequence_id = fields.Many2one(
         'ir.sequence', 'Reference Sequence',
-        check_company=True, copy=True)
+        check_company=True, copy=False)
     sequence_code = fields.Char('Sequence Prefix', required=True)
     default_location_src_id = fields.Many2one(
         'stock.location', 'Default Source Location', compute='_compute_default_location_src_id',
diff --git a/addons/stock/tests/test_stock_flow.py b/addons/stock/tests/test_stock_flow.py
index 303caae1760..448c7a744ac 100644
--- a/addons/stock/tests/test_stock_flow.py
+++ b/addons/stock/tests/test_stock_flow.py
@@ -2485,28 +2485,6 @@ class TestStockFlow(TestStockCommon):
         pickings.button_validate()
         self.assertTrue(all(pickings.mapped(lambda p: p.state == 'done')), "Pickings should be set as done")
 
-    def test_pickings_on_duplicated_operation_types(self):
-        """ Ensure we can create pickings on duplicated operation types without collision in names
-            Steps:
-            - Create a picking on an operation type
-            - Duplicate the operation type
-            - Create another picking on the duplicated operation type
-        """
-        self.PickingObj.create({
-            'picking_type_id': self.picking_type_in,
-            'location_id': self.supplier_location,
-            'location_dest_id': self.stock_location,
-        })
-        duplicated_picking_type = self.env['stock.picking.type'].browse(self.picking_type_in).copy()
-        picking_2 = self.PickingObj.create({
-            'picking_type_id': duplicated_picking_type.id,
-            'location_id': self.supplier_location,
-            'location_dest_id': self.stock_location,
-        })
-        # trigger SQL constraints
-        self.PickingObj.flush_model()
-        self.assertEqual(self.PickingObj.search_count([('name', '=', picking_2.name)]), 1)
-
     def test_empty_picking_draft(self):
         """ test an empty still can be reset to draft """
         picking = self.PickingObj.create({