I am in learning phase of BPM. I successfully created a process which involved 3 WDJ screens and 2level BPM process.
Although i faced below WebService Exception frequently
Exception on execution of web service with operation Operation' in interface WSDL
Mainly I found two reasons for the exception:
1. Authentication has failed for webService
2. All the parameters are not set
1. Set UserId Password to the web service to code
Refer link below:
Set Authentication Property to your WDJ application:
Select Application -> go to Property ->
Select Application Properties
Click on browse select Authentication.
And Run the application. It will ask for credentials.
2. If any of the parameter value is not set it might throw exception. If you dont have values for all set empty string.