4 Not Implemented Not Implemented System.Data.Services.DataServiceException at System.Data.Services.WebUtil.GetRequestEnumerator(IEnumerable enumerable) at System.Data.Services.Providers.DataServiceExecutionProviderWrapper.GetSingleResultFromRequest(SegmentInfo segmentInfo) at System.Data.Services.DataService`1.CompareETagAndWriteResponse(RequestDescription description, IDataService dataService, IODataResponseMessage responseMessage) at System.Data.Services.DataService`1.HandleRequest() The method or operation is not implemented. System.NotImplementedException at System.Data.Services.Providers.DataServiceProviderMethods.GetSequenceValue[T](Object value, ResourceProperty property) at lambda_method(Closure , Entity ) at Terrasoft.Core.Entities.EntityEnumerable`1.GetEnumerator() at System.Data.Services.Providers.BasicExpandProvider.ExpandedQueryable`1.GetEnumerator() at System.Data.Services.WebUtil.GetRequestEnumerator(IEnumerable enumerable)