Running out of stock

One of my items on amazon is about to go out of stock 1 left, what’s the best thing to do while I wait for stock?

Answer: Leave it at zero until I have new stock. You will lose some orders but its better than having orders waiting in the hope you’ll receive your stock and get it to the centre quickly. What if there’s some sort of delay, a headache with the possibility of buyers moaning at you, A to Z cases opened etc