Changing a Pre-Order Release Date
You can change your pre-order release date at any time up until the time of release. Just click on the product in your Products dashboard, click on the release date, select a new date and/or time, and click Save Changes.
To notify your customers of this change, go to your Posts dashboard and click New post. Filter your audience by Customers Only, and then select your pre-order product from the Bought drop-down menu. Type and customize your message, then click Send.
Manually releasing a pre-order before the release date
If you have made pre-order sales and added all completed product files to your pre-order product, go to the Share tab of your product and click Release Product to charge your customers' cards and deliver the finished product.