Sending the same message again results in the following fault response:
<soapenv:Fault>
<faultcode
xmlns:p244="http://www.ibm.com/xmlns/prod/serviceregistry/6/0/ws/sdo">
p244:>ServiceRegistryWebServiceException
</faultcode>
<faultstring>
<![CDATA[com.ibm.serviceregistry.ServiceRegistryWebServiceException:
GSR0012E: File already exists in the ServiceRegistry with bsrUri
e1c954e1-5c82-4289.86b3.0f01220fb3c2]]>
</faultstring>
<detail encodingStyle="">
<p244:ServiceRegistryWebServiceException
xmlns:p244="http://www.ibm.com/xmlns/prod/serviceregistry/6/0/ws/sdo">
<message>GSR0012E: File already exists in the ServiceRegistry with bsrUri
e1c954e1-5c82-4289.86b3.0f01220fb3c2
</message>
</p244:ServiceRegistryWebServiceException>
</detail>
</soapenv:Fault>
The related reference describes the standard SOAP envelope, header and body elements that messages are wrapped in.