Ensure that you have a valid WSDL file. Ensure that the WSDL files use the correct syntax for the test environment. The generic service client might not work with some Web Services Description Language (WSDL) files.
If the service uses Secure Sockets Layer (SSL) authentication, create an SSL configuration before invoking the call. See Creating SSL configurations for details.
If the service uses SOAP security for encryption, signature, or other security algorithms, you must first configure the environment with the correct libraries and configuration files, and then create a security profile for the WSDL. See Configuring the environment for SOAP security and Creating security profiles for WSDL files for details.
Calls will be generated for each operation in the WSDL file using the default values for each type. For example, strings will use the default value str. You can change the default values in the XML Default Values preferences.