Can I connect to salesforce vis WebServiceSOAPClient? If so where would I find the WSDL for it?
Why do you want to connect to SFDC using SOAP client? Boomi has native SFDC connector which does the job perfectly fine. However, if you still looking for WSDL you can check below link
I know using the connector is the best way to go, but we were exploring possibilities of connecting via HttpClient because some modules of salesforce like OMS, Kimble cannot be connected using salesforce connector.
We could connect using the web services soap client conenctor. I will prepare the document on how to accomplish this and publish in the knowledge base articles very soon.
Retrieving data ...