I´ve already used this types:

application/x-www-form-urlencoded - application/xml - application/x-object - application/octet-stream

All of them with tha same result, like the xml file was not attached

That is the correct result:

I´ve already used this types:

application/x-www-form-urlencoded - application/xml - application/x-object - application/octet-stream

All of them with tha same result, like the xml file was not attached

That is the correct result: