Since this information is not easy to find, I want to share it with you. Valid WSSE security header should look like this: <soapenv:Header> <wsse:Security xmlns:wsse=”http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd” soapenv:mustUnderstand=”1″> <wsse:UsernameToken> […]