Essent Preorder Back in Stock

I have used this app a couple of times and have found it really useful, and the support - to the limited extent I have needed it - has been prompt and helpful and available. This is great. As a small business with non-standard, curated inventory from small batch suppliers, I need to be able to take pre-orders and to be able to notify people when the item they want is back in stock, since I am often not entirely certain of when goods will arrive. The Essential Preorder product is the perfect solution for this. I don't need this app all the time, nor for all products. So, being able to configure it to my circumstances for specific products at specific times is really helpful. For the rare circumstance where I need to apply a pre-order option to all products (say, I am taking a vacation), this helps the store remain in business online with customers being informed that their order will ship in X days (when we're back). So, it's a perfect little helper, and priced fairly for my small scale.