diff --git a/server/AyaNova/models/DataListProcessingBase.cs b/server/AyaNova/models/DataListProcessingBase.cs
index 4cab5bc8..0135212d 100644
--- a/server/AyaNova/models/DataListProcessingBase.cs
+++ b/server/AyaNova/models/DataListProcessingBase.cs
@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System;
 namespace AyaNova.Models
 {
 
@@ -9,6 +10,7 @@ namespace AyaNova.Models
         public Dictionary<string, string> SortBy { get; set; }
         public List<DataListFilterOption> Filter { get; set; }
         public string ClientCriteria { get; set; }
+        public DateTimeOffset ClientTimeStamp { get; set; }
 
         public DataListProcessingBase()
         {
diff --git a/server/AyaNova/models/DataListRequestBase.cs b/server/AyaNova/models/DataListRequestBase.cs
index a3ec9eca..bed85280 100644
--- a/server/AyaNova/models/DataListRequestBase.cs
+++ b/server/AyaNova/models/DataListRequestBase.cs
@@ -1,4 +1,4 @@
-using System.Collections.Generic;
+using System;
 namespace AyaNova.Models
 {
 
@@ -7,7 +7,8 @@ namespace AyaNova.Models
     {
         public string DataListKey { get; set; }      
         public string ClientCriteria { get; set; }
-        public long FilterId {get;set;}       
+        public long FilterId {get;set;}  
+        public DateTimeOffset ClientTimeStamp {get;set;}     
     }
    /*
    REQUEST
diff --git a/server/AyaNova/models/DataListSelectedProcessingOptions.cs b/server/AyaNova/models/DataListSelectedProcessingOptions.cs
index 3f13a78d..cc1cc3e3 100644
--- a/server/AyaNova/models/DataListSelectedProcessingOptions.cs
+++ b/server/AyaNova/models/DataListSelectedProcessingOptions.cs
@@ -28,6 +28,7 @@ namespace AyaNova.Models
             //set some values from request            
             base.ClientCriteria = request.ClientCriteria;
             base.DataListKey = request.DataListKey;
+            base.ClientTimeStamp = request.ClientTimeStamp;
 
             //SET SORTBY
             base.SortBy = JsonConvert.DeserializeObject<Dictionary<string, string>>(savedView.Sort);
diff --git a/server/AyaNova/models/DataListTableProcessingOptions.cs b/server/AyaNova/models/DataListTableProcessingOptions.cs
index ca2a8a3a..495f39d8 100644
--- a/server/AyaNova/models/DataListTableProcessingOptions.cs
+++ b/server/AyaNova/models/DataListTableProcessingOptions.cs
@@ -29,6 +29,7 @@ namespace AyaNova.Models
             Offset = request.Offset;
             base.ClientCriteria = request.ClientCriteria;
             base.DataListKey = request.DataListKey;
+            base.ClientTimeStamp = request.ClientTimeStamp;
 
             //SET COLUMNS
             Columns = JsonConvert.DeserializeObject<List<string>>(savedView.Columns);