Hi Stefano,
the request was not working till I change prefix
This makes sense, if I presume the service provider is using some XML parser to read your request
SOAP message than standard Web Services API.
but how can i change the prefix I read from SOAPEnvelop?
I'm sure if you are getting response SOAP message, it'd be conformed to SOAP specification and so it is a valid SOAP message. If so, it can be read by your Web Services API irrespective of whatever prefix it uses.
Otherwise, if the response SOAP message is not a valid SOAP message then use any XML parser to read it.
Cheers,
Naren
(OCEEJBD6, SCWCD5, SCDJWS, SCJP1.4 and Oracle SQL 1Z0-051)