To support the different operations of the WSDL we need different branches, which will hold the necessary flow logic. This can be achieved with an Operational Branch node.
Make sure you have the current state of the basic-osb-service project available in Eclipse OEPE. We will start this recipe from there. Delete the existing routing node by right-clicking on it and then select Delete. We again have an empty message flow to start with. If needed, it can be imported from here: