The product won't be orderable if there is no available stock.
The product will be unavailable for delivery.
The product won't be available from a shop at all.
Indicates the product isn't sellable.
The product will be unavailable until the pre-order date.
Indicates the product won't be back in store and all current stock is all there is going to be.
The product won't be available for endless aisle pickup from shop.