Admin can enable and disable pre-order for a product.
Notify customers when the product is back in stock.
Customer can preorder the product when it is out of stock.
Preorder app convert cart button to preorder button when product is not in stock. So that customers can order item even it is out of stock which rises sales.
No need to lose customers Friendly UI for admin and customers Enable or Disable Preorder Admin can set preorder button and notify me settings can limit customer preorders NotifyMe
Customizable NotifyMe Button Send notification email to customer when the item get in stock
preorder item list
add remove preorder items