Abstract: A communications system supports transactions through seat video display units (SVDUs) and/or passenger electronic devices (PEDs) onboard aircraft. A ground-based server uploads to an aircraft server a set of promotions and associated criteria, where each criteria defines a condition that must be satisfied before transactions can be completed to obtain an associated one of the promotions. The ground-based server receives reports containing promotion usage metrics from the aircraft server, determines whether any of the criteria conditions are satisfied based on the promotion usage metrics, and when one of the criteria conditions associated with a satisfied one of the promotions is determined to be satisfied, sends a notification to the aircraft server that authorizes completion of the transactions for the satisfied one of the promotion. The vehicle server promotes the set of promotions and sends reports containing promotion usage metrics to the ground-based server.