What is Automated Supply Vending? Vending machines can do more than dispense candy and snacks. In fact, they can save your company up to 50% on supply costs and countless man hours due to improved efficiency. If you can imagine it, it can probably be vended in some way. Some common applications for supply vending are PPE (personal protection equipment), MRO (maintenance, repair, and operations), and IT peripherals (chargers, keyboards, computer mice, etc).