As of Sales Pack v2.0.
Return Orders are used to document product returned from customers. A Return Order can be created from a completed Sales Order. Multiple Receipt Orders can be created from a single Return Order.
If the Warehouses feature is enabled, a Receipt Order record can be associated with a Warehouse the return is supposed to be shipped to.
Access to Return Orders is controlled by Roles.
It's possible to print a Return Order to PDF and send the PDF in an email.