The user interface for sending the purchase order to the supplier is opened via the desktop within the 'Classic' tab by clicking on the link located under 'Send PO to vendor'.
The interface for sending a purchase order to a supplier is divided into three parts. On the left is a document preview, in the middle is a data entry area, and on the right is a toolbar with certain functionalities, depending on which tab is open. The data entry area is divided into four parts by tabs: 'Activity', 'Process Package', 'History' and 'All Tasks'.