SAP Message 0T128 - System &1 has transport routes, but no standard layer for it

Diagnosis The system &V1& is the starting point for the consolidation routes. Notransportable transport layer or default transport layer has beenassigned to this system or to a client of this system. New packages andCustomizing settings are recorded in local requests. System Response This is a warning. Procedure Check and if necessary, correct the default transport layer(s) for thesystem &V1&.