How to call Function through Soap Action

Hi all,

I have a Receiver communication channel in PI that sends data to from the interface to Oracle Webservice.

At that moment a function should be called with two constant parameters and the third one is the xml with all the data.

updateExchangeRates("CJV", "connector", ratesXML)

xml schema:

Anyone knows if it is possible to call that function in PI soap action and how should I do it?

I've tested soap action with

updateExchangeRates("CJV", "connector", list_wrapper)

and got the error:

invalid content type for SOAP: TEXT/HTML; HTTP 401 Unauthorized

Thnaks in advance,

Regards