diff --git a/addons/sale_stock/tests/test_sale_stock.py b/addons/sale_stock/tests/test_sale_stock.py
index 97c2f0e4e8d..e8b424c96e6 100644
--- a/addons/sale_stock/tests/test_sale_stock.py
+++ b/addons/sale_stock/tests/test_sale_stock.py
@@ -1184,6 +1184,32 @@ class TestSaleStock(TestSaleCommon, ValuationReconciliationTestCommon):
         self.assertEqual(so.order_line[1].qty_delivered, 1)
         self.assertEqual(so.order_line[1].product_uom.id, uom_km_id)
 
+    def test_19_deliver_update_so_line_qty(self):
+        """
+        Creates a sale order, then validates the delivery
+        modifying the sale order lines qty via import and ensures
+        a new delivery is created.
+        """
+        self.product_a.type = 'product'
+        self.env['stock.quant']._update_available_quantity(
+            self.product_a, self.company_data['default_warehouse'].lot_stock_id, 10)
+
+        # Create sale order
+        sale_order = self._get_new_sale_order()
+        sale_order.action_confirm()
+
+        # Validate delivery
+        picking = sale_order.picking_ids
+        picking.move_ids.write({'quantity_done': 10})
+        picking.button_validate()
+
+        # Update the line and check a new delivery is created
+        with Form(sale_order.with_context(import_file=True)) as so_form:
+            with so_form.order_line.edit(0) as line:
+                line.product_uom_qty = 777
+
+        self.assertEqual(len(sale_order.picking_ids), 2)
+
     def test_multiple_returns(self):
         # Creates a sale order for 10 products.
         sale_order = self._get_new_sale_order()
diff --git a/addons/stock/i18n/stock.pot b/addons/stock/i18n/stock.pot
index 50826bda4e0..2e243127aef 100644
--- a/addons/stock/i18n/stock.pot
+++ b/addons/stock/i18n/stock.pot
@@ -3820,15 +3820,6 @@ msgstr ""
 msgid "Is quantity done editable"
 msgstr ""
 
-#. module: stock
-#. odoo-python
-#: code:addons/stock/models/stock_move_line.py:0
-#, python-format
-msgid ""
-"It is not allowed to import reserved quantity, you have to use the quantity "
-"directly."
-msgstr ""
-
 #. module: stock
 #. odoo-python
 #: code:addons/stock/models/stock_quant.py:0
diff --git a/addons/stock/models/stock_move_line.py b/addons/stock/models/stock_move_line.py
index 8985cd50264..c62d798451d 100644
--- a/addons/stock/models/stock_move_line.py
+++ b/addons/stock/models/stock_move_line.py
@@ -362,9 +362,6 @@ class StockMoveLine(models.Model):
             move.with_context(avoid_putaway_rules=True).product_uom_qty = move.quantity_done
 
         for ml, vals in zip(mls, vals_list):
-            if self.env.context.get('import_file') and ml.reserved_uom_qty and not ml.move_id._should_bypass_reservation():
-                raise UserError(_("It is not allowed to import reserved quantity, you have to use the quantity directly."))
-
             if ml.state == 'done':
                 if ml.product_id.type == 'product' and not self.env.context.get('bypass_reservation_update'):
                     Quant = self.env['stock.quant']