MPM Hobbies review for Early Bird: Preorder & Restock

It will let the customer purchase into zero and negative amounts without indicating that any purchase of an item when the inventory goes from zero or below will be a backorder. Basically, if a product has an inventory of 1 it will allow the customer to purchase 4, in a single order, without indicating that 3 will be a backorder. The customer is left unaware that 3 items are not in stock, and we the merchants are stuck dealing with this. They require you to check "continue selling when out of stock" to enable the backorder function but did not take into account going zero or below in inventory on a single purchase. Not to mention Google lists your products in stock when inventory is zero or below because of the "continue selling when out of stock" requirement to use the backorder function.