Sold something you don’t have

The way it is now
A customer pays for a power supply that the website shows as “in stock”. In the morning the warehouse reports that the last one went yesterday. The manager calls to apologize and processes a refund, and the customer leaves — along with a bad review.
With Giant4 IT
Stock and prices come from 1C every few minutes. When an item runs out, the website switches it to “backorder” right away, and a paid order is reserved in 1C so it can’t go to someone else.
