Buying methods
DOOH can be bought following different buying models: real-time or 'play hour' model.
Real-time: the ad is served when the bid request happens and is won.
'Play hour': the ad is served X time after the bid request happens and is won, it is usually during the next hour. If the play hour is the same hour as the request if the attribute is missing, the win notification happens in real-time. The next images show captures of the documentation detailing the RTB model and the play hour attribute.