Dear,

You don't need to build any extension for the SOAP. The service is already available in the logic tab. You can simply right-click and upload the WSDL file path or file to consume the SOAP service. 

Please find the documentation for your reference SOAP Details

Hi, @Vignesh Sekar 

Thank you for your comment.

As you say,  I can upload a WSDL file and import a SOAP web service into OutSystems.

But, if I try to call the SOAP web service in an action, I will get an error.

[Error Sample]----------------------------------------------------------------------

This HTTP request is not authorized with client authentication scheme 'Anonimous'.

The authentication header received from the server was 'Negotiate,NTLM'.

-------------------------------------------------------------------------------------------

Dear,

The error indicates that the authentication method is missing the NTLM token.

To resolve this, you need to add the NTLM token to the request header.

Please create a new extension and use the following code to generate the NTLM token:

csharpCopyCredentials = new NetworkCredential("username", "password", "domain");

This function generates the NTLM token for your SOAP service. Afterward, use the SOAP extensibility function OnBeforeRequest to add the NTLM token to the request header.

Hope it will work !

 if you still have issue please share OML I will update for you

Hi, @Vignesh Sekar 

Thank you for your comment.

I understand that an authentication token is required.

But I'm sorry. 

For security reasons, I can not provide the OML.

Could you please provide each setting to screen captures or text describing ?