Our site has been working great but just recently the inventory control started acting up. All the variants for a particular item have an inventory count of 0 but for some reason, some customers are still placing orders for it.
How can this happen? I believe there are multiple checks against inventory control before the final gateway transaction? Our site even disables the add to cart button on the product page when that variant is out of stock so I dont know how this is possible. I then thought maybe they added it to their cart and that it was cached on their system so would that be it? even if that were it, right before the final transaction it would check against inventory again?
Another possibility would be if a customer added the product to their wistlist before the item went out of stock.. and then the customer moves the product from their wishlist to the cart?
Please help.
Thanks