diff --git a/tienda_ilusion/don_confiao/tests/test_api.py b/tienda_ilusion/don_confiao/tests/test_api.py
index 99c923e..da9910b 100644
--- a/tienda_ilusion/don_confiao/tests/test_api.py
+++ b/tienda_ilusion/don_confiao/tests/test_api.py
@@ -50,6 +50,7 @@ class TestAPI(APITestCase):
         data = {
             'customer': self.customer.id,
             'date': '2024-09-02',
+            'payment_method': 'CASH',
             'saleline_set': [
                 {'product': self.product.id, 'quantity': 2, 'unit_price': 3000},
                 {'product': self.product.id, 'quantity': 3, 'unit_price': 5000}