What must be true for a single out-of-home impression to be real?

Rows, each with independent hardware, connectivity and environmental conditions. The Institute IAB and IAB Europe published joint Definitions and standards for measuring in-store retail media in December 2024, establishing a scale of impressions with four thresholds — Ad Play, Gross Impression, Opportunity To See and Likelihood-To-See — to formalize what the different levels of confirmed delivery actually mean.

What must be true for a single out-of-home impression to be real?

For a confirmed impression, approximately forty independent conditions must hold simultaneously. The power supply must reach the panel without the breaker interrupting; the display must be on, not in standby, with the correct input selected and brightness calibrated according to ambient light. The player must be working and available; the cables must be inserted and undamaged; the handling between the player and the display must be maintained. The content must be downloaded before the scheduled slot; the correct creative must be played in the correct duration with audio in the intended state. And the screen must remain physically unobstructed — no seasonal setup, pallet or barrier that blocks the line of sight. These interruptions happen quietly across aisles, entrances, transit halls and parking structures that have almost no common operational conditions. The analysis by No Fluff Advisory of the standa