diff --git a/addons/hr_expense/i18n/hr_expense.pot b/addons/hr_expense/i18n/hr_expense.pot
index b26c16e88da..c30ecaba78b 100644
--- a/addons/hr_expense/i18n/hr_expense.pot
+++ b/addons/hr_expense/i18n/hr_expense.pot
@@ -148,6 +148,11 @@ msgstr ""
 msgid "All Expenses"
 msgstr ""
 
+#. module: hr_expense
+#: model:ir.model.fields,help:hr_expense.field_hr_expense_account_id
+msgid "An expense account is expected"
+msgstr ""
+
 #. module: hr_expense
 #: model:ir.model.fields,field_description:hr_expense.field_hr_expense_analytic_account_id
 #: model:ir.ui.view,arch_db:hr_expense.view_hr_expense_filter
@@ -826,6 +831,18 @@ msgid "Once your email gateway is configured, come back to this screen\n"
 "                            to setup the next steps."
 msgstr ""
 
+#. module: hr_expense
+#: code:addons/hr_expense/models/hr_expense.py:537
+#, python-format
+msgid "Only HR Officers can approve expenses"
+msgstr ""
+
+#. module: hr_expense
+#: code:addons/hr_expense/models/hr_expense.py:528
+#, python-format
+msgid "Only HR Officers can refuse expenses"
+msgstr ""
+
 #. module: hr_expense
 #: selection:hr.expense.sheet,state:0
 #: model:mail.message.subtype,name:hr_expense.mt_expense_paid
@@ -1308,7 +1325,13 @@ msgid "You cannot report expenses for different employees in the same report!"
 msgstr ""
 
 #. module: hr_expense
-#: code:addons/hr_expense/models/hr_expense.py:104
+#: code:addons/hr_expense/models/hr_expense.py:605
+#, python-format
+msgid "You cannot report expenses with different payment modes."
+msgstr ""
+
+#. module: hr_expense
+#: code:addons/hr_expense/models/hr_expense.py:105
 #, python-format
 msgid "You cannot report twice the same line!"
 msgstr ""
diff --git a/addons/hr_expense/models/hr_expense.py b/addons/hr_expense/models/hr_expense.py
index 61a45a48154..4bbdb0b3dbc 100644
--- a/addons/hr_expense/models/hr_expense.py
+++ b/addons/hr_expense/models/hr_expense.py
@@ -596,3 +596,10 @@ class HrExpenseSheet(models.Model):
         employee_ids = self.expense_line_ids.mapped('employee_id')
         if len(employee_ids) > 1 or (len(employee_ids) == 1 and employee_ids != self.employee_id):
             raise ValidationError(_('You cannot add expense lines of another employee.'))
+
+    @api.one
+    @api.constrains('expense_line_ids')
+    def _check_payment_mode(self):
+        payment_mode = set(self.expense_line_ids.mapped('payment_mode'))
+        if len(payment_mode) > 1:
+            raise ValidationError(_('You cannot report expenses with different payment modes.'))