I am using .NET 4.0 client to connect to zuora soap client. First of all, TLS 1.2 does not work automatically from .NET 4.5. My local project started working when I upgraded to .NET 4.6. However, the behavior was really erratic. Our dev servers with .NET 4.0 required the SchUseStrongCrypto registry key for it to work. Same thing failed on Test servers though 🙂 Finally had to install .Net 4.6 on all servers to get them to work. They still fail without the SchUseStrongCrypto registry key.   We had another Web application running on IIS 7.5 and using .NET 4.6. This app failed even with the SchUseStrongCrypto registry key enabled. After lot of googling, came across the following solution:               if (System.Net.ServicePointManager.SecurityProtocol == (SecurityProtocolType.Ssl3 | SecurityProtocolType.Tls))                 System.Net.ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;   This is similar to Scottb's response to @mpepalla ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072;    ... View more

This issue has been fixed. It was my mistake. I was using an endpoint https://apisandbox.zuora.com/apps/services/a/57.0 and trying to use a WSDL from version 75. For some reason the service works for WSDL versions upto 68 using https://apisandbox.zuora.com/apps/services/a/57.0 and breaks for versions from 69, possibly due to the DateTime changes ... View more

Hi Viktor, The EffectiveDate field I am referring to is for the Payment Class The parameter I used is : svcutil /t:code /out:ZuoraService.cs /config:../app.config /mergeconfig  /ct:System.Collections.Generic.List`1  zuora.a.75.0.wsdl   I tried the parameter you suggested: svcutil /t:metadata https://www.zuora.com/apps/services/a/69.0 I get the following error: c:\E_Drive Backup_01282016\Test Projects\Bandwidth.com\Bandwidth.com\Zuora>Zuora ProxyGenerator.bat c:\E_Drive Backup_01282016\Test Projects\Bandwidth.com\Bandwidth.com\Zuora>∩╗┐ec ho off '∩╗┐echo' is not recognized as an internal or external command, operable program or batch file. c:\E_Drive Backup_01282016\Test Projects\Bandwidth.com\Bandwidth.com\Zuora>REM s vcutil /t:code /out:ZuoraService.cs /config:../app.config /mergeconfig  /ct:Syst em.Collections.Generic.List`1  zuora.a.75.0.wsdl c:\E_Drive Backup_01282016\Test Projects\Bandwidth.com\Bandwidth.com\Zuora>svcut il /t:metadata https://www.zuora.com/apps/services/a/69.0 Microsoft (R) Service Model Metadata Tool [Microsoft (R) Windows (R) Communication Foundation, Version 4.0.30319.1] Copyright (c) Microsoft Corporation.  All rights reserved. Attempting to download metadata from 'https://www.zuora.com/apps/services/a/69.0 ' using WS-Metadata Exchange or DISCO. Microsoft (R) Service Model Metadata Tool [Microsoft (R) Windows (R) Communication Foundation, Version 4.0.30319.1] Copyright (c) Microsoft Corporation.  All rights reserved. Error: Cannot obtain Metadata from https://www.zuora.com/apps/services/a/69.0 If this is a Windows (R) Communication Foundation service to which you have acce ss, please check that you have enabled metadata publishing at the specified addr ess.  For help enabling metadata publishing, please refer to the MSDN documentat ion at http://go.microsoft.com/fwlink/?LinkId=65455. WS-Metadata Exchange Error     URI: https://www.zuora.com/apps/services/a/69.0     Metadata contains a reference that cannot be resolved: 'https://www.zuora.co m/apps/services/a/69.0'.     <?xml version="1.0" encoding="utf-16"?><Fault xmlns="http://www.w3.org/2003/ 05/soap-envelope"><Code><Value>Client</Value></Code><Reason><Text xml:lang="en-U S">The endpoint reference (EPR) for the Operation not found is http://www.zuora. com/apps/services/a/69.0 and the WSA Action = null</Text></Reason><Detail xmlns: soapenv="http://www.w3.org/2003/05/soap-envelope"><Exception xmlns="">org.apache .axis2.AxisFault: The endpoint reference (EPR) for the Operation not found is ht tp://www.zuora.com/apps/services/a/69.0 and the WSA Action = null         at org.apache.axis2.engine.DispatchPhase.checkPostConditions(DispatchPha se.java:88)         at org.apache.axis2.engine.Phase.invoke(Phase.java:333)         at org.apache.axis2.engine.AxisEngine.invoke(AxisEngine.java:264)         at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:163)         at org.apache.axis2.transport.http.HTTPTransportUtils.processHTTPPostReq uest(HTTPTransportUtils.java:275)         at org.apache.axis2.transport.http.AxisServlet.doPost(AxisServlet.java:1 31)         at com.zuora.api.util.ZuoraAxisServlet.doPost(ZuoraAxisServlet.java:85)         at javax.servlet.http.HttpServlet.service(HttpServlet.java:650)         at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:303)         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:208)         at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52 )         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:241)         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:208)         at com.temp.HttpStatusExceptionFilter.doFilter(HttpStatusExceptionFilter .java:25)         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:241)         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:208)         at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.do FilterInternal(OpenSessionInViewFilter.java:198)         at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerR equestFilter.java:76)         at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl icationFilterChain.java:241)         at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF ilterChain.java:208)         at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV alve.java:220)         at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV alve.java:122)         at org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authentica torBase.java:505)         at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j ava:170)         at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j ava:103)         at org.apache.catalina.valves.RemoteIpValve.invoke(RemoteIpValve.java:68 3)         at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal ve.java:116)         at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav a:423)         at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp 11Processor.java:1079)         at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process( AbstractProtocol.java:620)         at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoin t.java:316)         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor. java:1142)         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor .java:617)         at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskTh read.java:61)         at java.lang.Thread.run(Thread.java:745) </Exception></Detail></Fault> HTTP GET Error     URI: https://www.zuora.com/apps/services/a/69.0     The document at the url https://www.zuora.com/apps/services/a/69.0 was not r ecognized as a known document type. The error message from each known type may help you fix the problem: - Report from 'XML Schema' is 'The root element of a W3C XML Schema should be <s chema> and its namespace should be 'http://www.w3.org/2001/XMLSchema'.'. - Report from 'DISCO Document' is 'Discovery document at the URL https://www.zuo ra.com/apps/services/a/69.0 could not be found.'.   - The document format is not recognized (the content type is ''). - Report from 'WSDL Document' is 'There is an error in XML document (1, 2).'.   - <html xmlns=''> was not expected. ... View more

Hi Omar, Thanks for your response. I looked at the links you have added in your comments before posting the question. The issue here is something to do with how the C# proxy is being generated from the WSDL. I have given below the C# code which I am passing as well as the Payment object in the proxy. If you look at the section 3. below of the Payment class from the proxy, you will see that the EffectiveDate is generated as a DateTime field.   1. C# Code  var payment = new Payment             {                 AccountId = "2c92c0f84c510073014c62fddc1f173e",                 AppliedCreditBalanceAmount = 10,                 AppliedCreditBalanceAmountSpecified = true,                 Amount = 10,                 AmountSpecified = true,                 AppliedInvoiceAmount = 10,                 PaymentMethodId = "2c92c0f953cfa2d80153f160efef0f25",                 Status = "Processed",                 Type = "Electronic",                 EffectiveDate = DateTime.Now,                 EffectiveDateSpecified = true,             }; 2. Payment object value in C# Debug Window -        payment    {Payment}    Payment         AccountId    "2c92c0f84c510073014c62fddc1f173e"    string         Amount    10    decimal?         AmountSpecified    true    bool         AppliedCreditBalanceAmount    10    decimal?         AppliedCreditBalanceAmountSpecified    true    bool         AppliedInvoiceAmount    10    decimal?         AppliedInvoiceAmountSpecified    true    bool +        EffectiveDate    {4/7/2016 8:39:38 AM}    System.DateTime?         EffectiveDateSpecified    true    bool         PaymentMethodId    "2c92c0f953cfa2d80153f160efef0f25"    string         Status    "Processed"    string         SubmittedOn    null    System.DateTime?         SubmittedOnSpecified    false    bool         Type    "Electronic"    string         accountIdField    "2c92c0f84c510073014c62fddc1f173e"    string         amountField    10    decimal?         amountFieldSpecified    true    bool         appliedCreditBalanceAmountField    10    decimal?         appliedCreditBalanceAmountFieldSpecified    true    bool         appliedInvoiceAmountField    10    decimal?         appliedInvoiceAmountFieldSpecified    true    bool +        effectiveDateField    {4/7/2016 8:39:38 AM}    System.DateTime?         effectiveDateFieldSpecified    true    bool         paymentMethodIdField    "2c92c0f953cfa2d80153f160efef0f25"    string         statusField    "Processed"    string         submittedOnField    null    System.DateTime?         submittedOnFieldSpecified    false    bool         typeField    "Electronic"    string   3. Given below is the Payment Object from the proxy which is generated public partial class Payment : zObject {          private System.Nullable<System.DateTime> effectiveDateField;          private bool effectiveDateFieldSpecified;          /// <remarks/>     [System.Xml.Serialization.XmlElementAttribute(DataType="date", IsNullable=true, Order=15)]     public System.Nullable<System.DateTime> EffectiveDate     {         get         {             return this.effectiveDateField;         }         set         {             this.effectiveDateField = value;         }     }      } ... View more