Currently, the "serviceName" is a label that OOF API uses to capture the instance invariant service identifier. However, SO seems to be mapping the "instanceName" to the "serviceName" which needs to be fixed. The subscriptionServiceType seems to be the right one to map to it. We could perhaps change the “serviceName” to make it consistent with the rest of ONAP. In fact, using the model-invariant-uuid to retrieve the policy may be cleaner, since Conductor uses this to retrieve service instances from AAI. Using a uniform ID across multiple systems would be very much desirable.