Cannot find Operation Name. Target Namespace is invalid

Hi,

I am connecting BizTalk to Oracle Webservice when biztalk sends data webservice i am getting following error

<env:Fault xmlns:env="http://schemas.xmlsoap.org/soap/envelope/"><faultcode>env:Server</faultcode><faultstring>oracle.apps.fnd.soa.util.SOAException: ServiceProcessingError: System ErrorInvalidEnvelope:Cannot find Operation Name. Target Namespace is invalid.</faultstring><faultactor></faultactor></env:Fault>

BizTalk  sends same message i have tried in SOAP UI its successfully processing

I have imported generated  biding file.

Regards,

Kapil.