OWL Automated Sales and Invoicing System (OASIS) for Windows is a complete sales management system that includes invoicing, automated billing, sales tracking, customer tracking, and mailing list management. Invoices and bills can be printed on plain paper or on your own letterhead. You can generate a variety of reports. Customer profile reports show each customer, the items they have purchased, and the dates each item was purchased. Product sales reports give a complete picture of products that are selling and those that are not. The Buyers report shows you the names of customers who have bought a particular product.OASIS also has complete capabilities for printing mailing labels. Customers can be organized into up to 100 groups. Mailing labels and mail merge files can be generated for any combination of one or more groups of customers. This feature lets you target your mass mailings to just those customers who are most likely to respond to a given mailing.OASIS can be configured to automatically compute two sales taxes to accomodate users with separate state/national and local sales taxes (e.g. Canadian GST and PST).Income data entered into OASIS can be imported into OWL's Basic Bookkeeping to provide complete tracking of both sales income and business expenses.