I have a Word Press website which sells jewelley. I want a basic inventory system so that if I have 2 rings in stock and a buyer selects 3 rings it will flag up only 2 available or if I am out of stock it prevents the buyer from paying for 2 rings. I know PayPal has an inventory "buy Now" button with inventory added but how it is not clear how to edit the html code for each item. Also there is no clear example of how this works.
