We just uploaded a coffee product and set the stock equal to 700 – expiry stock at 700.
A customer purchases 3 coffees and has 697 in stock. However, the expiry stock was 694 pieces.
I felt something was wrong, so I checked the order history, and found that the expiration date had gone out of stock 2 times, 3 for a total of 6 pieces.
I don’t know exactly what the problem is because someone didn’t set it up separately, and the WooCommerce system did this.