LabelParameter par = new LabelParameter(); par.LabelFormat = LabelFormat.Pdf; par.LabelSize = LabelSize.Cm_10x10; par.TrackReport = TrackReport.Label; par.HawbNo = new string[2]; par.HawbNo[0] = "344010500000151"; par.HawbNo[1] = "344010500000125"; ShipmentsClient client = new ShipmentsClient(); ReportResponse res = client.GenerateReport(par);