What happens when a (dumb) vendor cannot separate test and production environment - Nothing much , just a bunch of freaked-out customers

Many owners of Samsung smartphones have received an odd notification but the message  simply disappeared when they clicked on it. Samsung explains "This notification was confirmed as a message sent unintentionally during internal testing and there is no effect on your device"

https://www.grahamcluley.com/samsung-find-my-mobile-notification/