diff --git a/addons/stock/i18n/stock.pot b/addons/stock/i18n/stock.pot
index 5831d645738..dad94c6f1b4 100644
--- a/addons/stock/i18n/stock.pot
+++ b/addons/stock/i18n/stock.pot
@@ -1201,6 +1201,12 @@ msgstr ""
 msgid "Corridor (X)"
 msgstr ""
 
+#. module: stock
+#: code:addons/stock/wizard/stock_immediate_transfer.py:31
+#, python-format
+msgid "Could not reserve all requested products. Please use the 'Mark as Todo' button to handle the reservation manually."
+msgstr ""
+
 #. module: stock
 #: model:ir.ui.view,arch_db:stock.view_backorder_confirmation
 msgid "Create Backorder"
diff --git a/addons/stock/wizard/stock_immediate_transfer.py b/addons/stock/wizard/stock_immediate_transfer.py
index 9b21300b666..d118b6746c5 100644
--- a/addons/stock/wizard/stock_immediate_transfer.py
+++ b/addons/stock/wizard/stock_immediate_transfer.py
@@ -1,8 +1,9 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
-from openerp import models, fields, api
+from openerp import models, fields, api, _
 from openerp.tools import float_compare
+from openerp.exceptions import UserError
 
 class stock_immediate_transfer(models.TransientModel):
     _name = 'stock.immediate.transfer'
@@ -26,6 +27,8 @@ class stock_immediate_transfer(models.TransientModel):
             self.pick_id.action_confirm()
             if self.pick_id.state != 'assigned':
                 self.pick_id.action_assign()
+                if self.pick_id.state != 'assigned':
+                    raise UserError(_("Could not reserve all requested products. Please use the \'Mark as Todo\' button to handle the reservation manually."))
         for pack in self.pick_id.pack_operation_ids:
             if pack.product_qty > 0:
                 pack.write({'qty_done': pack.product_qty})