When using a pre-order plugin, you can list a product in your shop that isn’t for sale yet but will be launched at a certain date or time. Then, customers will be able to pay for the product to reserve it before it’s available, so they know it won’t be sold out and they will receive the product as soon as it launches. It is a strategy used by the most popular companies, like Amazon or Apple, because pre-orders are a great way to create a sense of urgency, engage your customers, and get an early cash flow to fund production, advertising or marketing campaigns.