In its Tuesday announcement that all Amazon Go stores were now closing, Amazon credited the convenience stores for serving as innovation hubs where it developed its Just Walk Out technology. Now, the checkout-free technology operates in more than 360 third-party locations across five countries, Amazon said.

NEW YORK (AP) — Amazon said it’s closing all of its Amazon Go and Amazon Fresh locations, as the online behemoth focuses on its grocery delivery, Whole Foods Market and a new “supersized” store concept.