An integral part of the sale of goods on the Internet is the creation of the necessary documents (pro forma invoices, invoices and credit notes). The Retailys systems able to create these documents automatically and immediately after creating the order without the need for additional accounting software. The system automatically inserts all the necessary data from the customer’s name to the selected type of transport and payment. Documents are created in two formats: Classic PDF format and HTML format, i.e. displayed in a browser.