diff --git a/trytond/trytond/modules/account_invoice_defer/account.py b/trytond/trytond/modules/account_invoice_defer/account.py
index 09929e7..c58e120 100644
--- a/trytond/trytond/modules/account_invoice_defer/account.py
+++ b/trytond/trytond/modules/account_invoice_defer/account.py
@@ -4,6 +4,7 @@
from trytond.i18n import gettext
from trytond.model import ModelSQL, ModelView, Workflow, fields, Unique
from trytond.model.exceptions import AccessError
+from trytond.modules.account.exceptions import AccountMissing
from trytond.pool import PoolMeta, Pool
from trytond.pyson import Eval, If
from trytond.transaction import Transaction
@@ -357,9 +358,17 @@ class InvoiceDeferred(Workflow, ModelSQL, ModelView):
if invoice.type == 'out':
balance.account = configuration.get_multivalue(
'deferred_account_revenue', company=self.company.id)
+ if not balance.account:
+ raise AccountMissing(gettext(
+ 'account_invoice_defer.'
+ 'msg_missing_deferred_account_revenue'))
else:
balance.account = configuration.get_multivalue(
'deferred_account_expense', company=self.company.id)
+ if not balance.account:
+ raise AccountMissing(gettext(
+ 'account_invoice_defer.'
+ 'msg_missing_deferred_account_expense'))
balance.debit, balance.credit = income.credit, income.debit
if balance.account.party_required:
balance.party = invoice.party
diff --git a/trytond/trytond/modules/account_invoice_defer/message.xml b/trytond/trytond/modules/account_invoice_defer/message.xml
index cccdb09..28d1f88 100644
--- a/trytond/trytond/modules/account_invoice_defer/message.xml
+++ b/trytond/trytond/modules/account_invoice_defer/message.xml
@@ -12,5 +12,11 @@ this repository contains the full copyright notices and license terms. -->
You cannot delete invoice deferred "%(deferral)s" because it is not in "draft" state.
+
+ There is no deferred account revenue configured.
+
+
+ There is no deferred account expense configured.
+