Webcreta_OutofStockSubscription

When a product is out of stock, the customer be able to request notification of availability by
entering an email address on the product detail page. The
subscribers will be notified by email
when the product will be back in stock.
For example, one of your products goes out of stock, in the product info page customer can see
one new form that will allow to subscribe for newsletter. When the product quantity
will be
changed, the customer will receive an email that will inform him that product is ready for
ordering.
Also admin can see the list of subscribers at Magento backend, and could delete any subscriber
from the list. Product wise filtering allows to see
which product is most subscribed by your
customers. You can change the product stock notification email template from backend. And
also allow to enable/disable the product out of stock subscription form at frontend product
page