Oh, lol, it's even more of a clusterfuck. There is/was a whole lawsuit over the rollout.

https://www.pymnts.com/legal/2023/walgreens-cooler-screens-clash-over-digital-advertising-technology/

The dispute arose after Walgreens installed Cooler Screens’ technology, which replaces traditional cooler doors with digital screens that play targeted ads, The Wall Street Journal (WSJ) reported Monday (Oct. 2). Cooler Screens is now suing Walgreens, claiming the pharmacy chain obstructed a nationwide rollout of the technology and demanded its removal from stores.

Reached for comment by PYMNTS, Cooler Screens said in an emailed statement: “Walgreens is trying to deflect attention from its poor retail performance by falsely blaming others for its problems and poor stock performance.”

The kicker!

The company is backed by Microsoft, and its co-founder is Gregory Wasson, a former CEO of Walgreens.