I have version 1.9 loaded the problem is, I update the stock via csv file. When the item goes 0 it change to "out of stock" but when the quantity increase greater then 0 it doesn't change back to "in stock". It still says quantity 29 "out of stock" and all out of stock items do not show on our front end. so I am losing customers on item which I actually have in stock. I have over 50000 items so can not change everything manually.
Any idea how can I resolve this issue please? Magento should change the status automatically when quantity become greater than 0.