In a WSDL with conversionRate operation requiring fromCurrency and toCurrency, how are these values set in the flow when using a Web Service Consumer component?

• A. In the message payload
• B. As outbound properties
• C. As inbound properties
• D. In the HTTP header

Answer: (D)

The inputs for a SOAP operation defined in a WSDL are supplied in the message payload. For a conversionRate call that requires fromCurrency and toCurrency, you build a payload that matches the WSDL’s input structure and the Web Service Consumer uses that payload to populate the SOAP body of the request. The HTTP header carries transport-related details (like Content-Type and SOAPAction) and is not where the actual operation parameters live. Outbound and inbound properties are for metadata and routing information, not the actual parameter values. So you provide fromCurrency and toCurrency inside the payload, and the consumer marshals them into the SOAP envelope accordingly.