diff --git a/EnvelopeGenerator.Domain/Constants/AuthPolicy.cs b/EnvelopeGenerator.Domain/Constants/AuthPolicy.cs
index a20afb23..88b1186d 100644
--- a/EnvelopeGenerator.Domain/Constants/AuthPolicy.cs
+++ b/EnvelopeGenerator.Domain/Constants/AuthPolicy.cs
@@ -4,5 +4,6 @@ namespace EnvelopeGenerator.Domain.Constants
     {
         public const string SenderOrReceiver = nameof(SenderOrReceiver) + nameof(AuthPolicy);
         public const string Receiver = nameof(Receiver) + nameof(AuthPolicy);
+        public const string ReceiverTFA = nameof(ReceiverTFA) + nameof(AuthPolicy);
     }
 }