diff --git a/addons/stock/i18n/stock.pot b/addons/stock/i18n/stock.pot
index fdb4d83bf8c..eba81dd2ad1 100644
--- a/addons/stock/i18n/stock.pot
+++ b/addons/stock/i18n/stock.pot
@@ -9318,6 +9318,13 @@ msgstr ""
 msgid "You may only return one picking at a time."
 msgstr ""
 
+#. module: stock
+#. odoo-python
+#: code:addons/stock/model/stock_picking.py:0
+#, python-format
+msgid " You might want to update the locations of this transfer's operations "
+msgstr ""
+
 #. module: stock
 #. odoo-python
 #: code:addons/stock/models/stock_picking.py:0
diff --git a/addons/stock/models/stock_picking.py b/addons/stock/models/stock_picking.py
index 1911560aa6a..45a1e2562e4 100644
--- a/addons/stock/models/stock_picking.py
+++ b/addons/stock/models/stock_picking.py
@@ -757,6 +757,12 @@ class Picking(models.Model):
             "location_id": self.location_id,
             "location_dest_id": self.location_dest_id
         })
+        if any(line.reserved_qty or line.qty_done for line in self.move_ids.move_line_ids):
+            return {'warning': {
+                    'title': 'Locations to update',
+                    'message': _("You might want to update the locations of this transfer's operations")
+                }
+            }
 
     @api.model_create_multi
     def create(self, vals_list):