When Coop stopped buying reach and started measuring it.

Sales promotion is no sideshow for Coop: a promotion has to reach as many households in the target group as possible, in a short window — in our case families with children under 14. At the time the media plan ran mostly on insertion orders, meaning placements booked directly with individual publishers.

The problem with that is not a question of price but of visibility: if you buy from ten publishers separately, you cannot steer contact frequency across all ten. You don't know how many people you reached — you only know how many contacts you paid for. Part of the budget hits the same people for the twelfth time while others are never reached at all.

Together with the media agency TW Media we consolidated the digital activity onto one platform and ran the campaign 100% programmatically through the Google Marketing Platform — across the full range of formats: IAB display, video and custom homepage formats, bought through private auctions, preferred deals and programmatic guaranteed with the major Swiss publishers.

The point was not “programmatic instead of direct”. The point was to bring every channel into a single frequency management and to establish unique reach as the steering metric — per funnel step, measurable in real time.

The campaign dates from 2018. The question behind it is more current than ever: who controls delivery, and who checks the numbers afterwards? Back then it was about bringing ten publisher bookings into one frequency management. Today the same question arises one level up — when AI agents do the buying, protocols decide who gets to appear at all.

That I write about Protocol Commerce and build open auction infrastructure with Nexbid does not come out of a trend report. It comes from knowing ad technology from the inside — as a buyer at Coop, as a seller at NZZ and audienzz, as a vendor at Adcloud.