diff --git a/locale/es.po b/locale/es.po
index 129ae7b..0bbe4c7 100644
--- a/locale/es.po
+++ b/locale/es.po
@@ -2,7 +2,7 @@
 msgid ""
 msgstr "Content-Type: text/plain; charset=utf-8\n"
 
-msgctxt "error:sale.line.quick_action:"
+msgctxt "model:ir.message,text:msg_wrong_state"
 msgid "Sale must be in Draft state."
 msgstr "Venta debe estar en estado Borrador."
 
diff --git a/message.xml b/message.xml
new file mode 100644
index 0000000..55a26a9
--- /dev/null
+++ b/message.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0"?>
+<!-- The COPYRIGHT file at the top level of this repository contains the full
+     copyright notices and license terms. -->
+<tryton>
+    <data grouped="1">
+        <record model="ir.message" id="msg_wrong_state">
+            <field name="text">Sale must be in Draft state.</field>
+        </record>
+    </data>
+</tryton>
diff --git a/sale.py b/sale.py
index 0a28858..d4b7ddf 100644
--- a/sale.py
+++ b/sale.py
@@ -5,9 +5,8 @@ from trytond.pool import PoolMeta, Pool
 from trytond.pyson import Eval
 from trytond.transaction import Transaction
 from trytond.wizard import Wizard, StateTransition, StateView, Button
-
-__all__ = ['SaleLine', 'SaleLineQuickAction', 'SaleLineQuickActionSplit',
-    'SaleLineQuickActionMove', 'SaleLineQuickActionDuplicate']
+from trytond.exceptions import UserError
+from trytond.i18n import gettext
 
 
 class SaleLine(metaclass=PoolMeta):
@@ -166,20 +165,14 @@ class SaleLineQuickAction(Wizard):
     )
     do_move = StateTransition()
 
-    @classmethod
-    def __setup__(cls):
-        super().__setup__()
-        cls._error_messages.update({
-            'wrong_state': 'Sale must be in Draft state.'
-        })
-
     def transition_start(self):
         pool = Pool()
         SaleLine = pool.get('sale.line')
 
         records = SaleLine.browse(Transaction().context['active_ids'])
         if any(r.sale_state != 'draft' for r in records):
-            self.raise_user_error('wrong_state')
+            raise UserError(gettext(
+                'sale_line_quick_actions.msg_wrong_state'))
 
         action_id = Transaction().context['action_id']
         return self._get_action_state()[action_id]
diff --git a/tests/scenario_sale_line_quick_actions.rst b/tests/scenario_sale_line_quick_actions.rst
index 1752bba..c799b0f 100644
--- a/tests/scenario_sale_line_quick_actions.rst
+++ b/tests/scenario_sale_line_quick_actions.rst
@@ -89,7 +89,6 @@ Create product::
     >>> template.name = 'product'
     >>> template.default_uom = unit
     >>> template.type = 'goods'
-    >>> template.purchasable = True
     >>> template.salable = True
     >>> template.list_price = Decimal('10')
     >>> template.account_category = account_category_tax
diff --git a/tryton.cfg b/tryton.cfg
index 9517208..65fcdf7 100644
--- a/tryton.cfg
+++ b/tryton.cfg
@@ -7,3 +7,4 @@ depends:
 
 xml:
     sale.xml
+    message.xml