What Is Programmatic DOOH?

Programmatic DOOH, often shortened to pDOOH, is digital out-of-home advertising bought and sold automatically through software rather than by insertion orders and email. The screens are the same roadside, transit, retail and venue screens used for any DOOH campaign. What changes is how a play on those screens is chosen, priced and confirmed.

It borrows the tools of online programmatic advertising, but one difference shapes everything else. An online advert is shown to one device. A public screen is watched by many people at once, so a pDOOH buy is for a play on a screen, and that play is converted into impressions using an audience estimate for the site and time. Buyers plan around places and moments rather than individual users, which is why the channel works without cookies or personal identifiers.

A programmatic play passes through four or five systems in a few seconds, and the last link in the chain is a computer bolted behind the screen. Most of the industry uses the IAB Tech Lab’s OpenRTB protocol, whose recent 2.6 versions include fields written for DOOH, such as venue type and the impression multiplier.

“Programmatic” does not always mean an auction. The same pipes carry several deal types, from fixed-price guaranteed deals to open real-time bidding, and many campaigns combine them with direct buys.

Guaranteed deals suit launches that must appear on set dates. Auction-based deals suit campaigns that can move budget between screens and hours as conditions change.

Because each play is bought separately, a pDOOH campaign can set conditions that decide whether it runs. Common rules include:

Reporting starts with proof of play: a time-stamped record from each player that the advert ran, on which screen, for how long. The audience estimate is then applied as an impression multiplier, so one play on a busy platform might count as dozens of impressions. Outcome studies come next, such as footfall attribution from aggregated mobile data and brand lift surveys against a control group.

Some media owners also count the audience at the screen. Cameras run anonymous people counting on the player itself, using edge AI to report how many people were present or facing the screen, without storing images. That data improves the multiplier and helps prove delivery to buyers.

Programmatic only works if the screen plays what was sold, when it was sold. A missed or late play is inventory the media owner cannot bill, so the players behind a pDOOH network carry more of the load than a simple looping sign.

We build and image the players for DOOH networks as standard, with the connectivity, remote management and analytics headroom each site needs, and test every player before it ships.