Here is my composite
very simple - the BPEL process just copies input to output, setting the status to "Approve"
To save the BPEL WSDL to MDS - Click the last item on the menu - Share using ...
WSDL directory is now empty
I now call this BPEL process from OSB, using the MDS location.
oramds:/apps/Orders/OrderProcess.wsdl