diff --git a/Yavsc/Settings/PayPalSettings.cs b/Yavsc/Settings/PayPalSettings.cs
index 88396709..d5681fd8 100644
--- a/Yavsc/Settings/PayPalSettings.cs
+++ b/Yavsc/Settings/PayPalSettings.cs
@@ -13,18 +13,38 @@ namespace  Yavsc
         ///
         /// </summary>
         public string ClientId { get; set; }
+
         /// <summary>
         /// For sandbox only?
         /// </summary>
         /// <returns></returns>
         public string ClientSecret { get; set; }
+        /// <summary>
+        /// Your application id ...
+        /// </summary>
+        /// <returns></returns>
         public string ApplicationId { get; set; }
+
+        /// <summary>
+        /// Get it from your PayPal Business profile settings
+        /// </summary>
+        /// <returns></returns>
+        public string MerchantAccountId { get; set; }
+
+        /// <summary>
+        /// PayPal Classic Api credentials model
+        /// </summary>
         public class ClassicPayPalAccountApiCredential  {
             public string Signature { get; set; }
             public string ApiUsername { get; set; }
             public string ApiPassword { get; set; }
-
         }
+
+        /// <summary>
+        ///  Live access is configured at:
+        ///  https://www.paypal.com/businessprofile/mytools/apiaccess
+        /// </summary>
         public ClassicPayPalAccountApiCredential[] Accounts { get; set; }
+
     }
 }