if i try to purchase an item with max Qty, i got error on CheckOut-Page.
For Example: there are an Item(Qty: 100, Stock Availability is In Stock). I can purchase 99 of it but if i try to purchase 100 in the same time, i get erorr.
Erorr: There was an error processing your order. Please contact us or try again later.
Check out your products inventory option "Qty for Item's Status to Become Out of Stock". There's a good chance that it's set to 1 instead of 0.