WooCommerce does not hold stock when a shopper adds a product to the cart. During a sale or a limited drop, many shoppers can have the last unit in their cart at the same time. Some find it gone at payment, others pay and you have to refund.
Cart Stock Reservation Timer for WooCommerce reserves the stock the moment it goes into the cart. Other shoppers only see what is really left. A countdown tells the shopper how long the items are theirs. When the time is up, the stock goes back on sale.
Most countdown plugins only show a clock. This one actually holds the stock.






