new file mode 100644
--- /dev/null
+++ b/Sales/Payment.cs
@@ -0,0 +1,20 @@
+/**
+ * Payment.cs
+ * 
+ * @author       Markus Bröker<broeker.markus@googlemail.com>
+ * @copyright    Copyright(C) 2017 4Customers UG
+ * 
+ */
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Sales
+{
+    class Payment
+    {
+        public enum PaymentType { NOW, WEEK, MONTH };
+    }
+}