It's a toast that appears in the corner of your storefront pages (never in the admin panel), announcing a recent purchase — for example, "J•••n purchased Chicken Bowl" — using a real meal name and photo along with a View Product link. It refreshes with a new batch of recent sales every 5 minutes, then shows one purchase at a time on a random 15/30/45-second interval, each visible for about 3 seconds. It's a social-proof/urgency marketing tool and has nothing to do with the admin notification bell.