An indoor vending machine put outside is not an outdoor vending machine
Outdoor operation exposes a vending machine to conditions that indoor hardware is not engineered to handle. Rain and moisture infiltrating unsealed electronics. Direct sunlight raising internal cabinet temperatures until refrigeration fails. Sub-zero winter temperatures causing condensation, freezing, and mechanical faults. UV exposure degrading display readability. None of these are edge cases: they are the normal operating environment for any outdoor vending machine placed in a real outdoor location.
Security is the second dimension that separates outdoor from indoor. An indoor machine has passive human oversight. An outdoor machine operates completely unattended at all hours. Vandals have more time, more privacy, and more determination. A standard lock is a starting point, not a deterrent. A genuinely vandal resistant vending machine is built from the enclosure design inward: anti-pry covers on every access point, high-security locking, reinforced polycarbonate or steel windows, and tamper-evident seals.

