diff --git a/EnvelopeGenerator.Common/Constants.vb b/EnvelopeGenerator.Common/Constants.vb
index 9631744e..c2a00304 100644
--- a/EnvelopeGenerator.Common/Constants.vb
+++ b/EnvelopeGenerator.Common/Constants.vb
@@ -21,7 +21,6 @@
         DocumentOpened = 2004
         DocumentSigned = 2005
         DocumentForwarded = 4001
-        'SignatureConfirmed = 2006
         DocumentRejected = 2007
         EnvelopeShared = 2008
         EnvelopeViewed = 2009
@@ -30,9 +29,15 @@
         MessageConfirmationSent = 3003
         MessageDeletionSent = 3004
         MessageCompletionSent = 3005
-        'DocumentMod_Rotation = 4001
     End Enum
 
+    Public Shared ReadOnly NonHistStatuses As IReadOnlyList(Of EnvelopeStatus) = New List(Of EnvelopeStatus) From {
+        EnvelopeStatus.Invalid,
+        EnvelopeStatus.EnvelopeSaved,
+        EnvelopeStatus.EnvelopeSent,
+        EnvelopeStatus.EnvelopePartlySigned
+    }
+
     'TODO: standardize in xwiki
     Public Enum ReferenceType
         Receiver = 0