The image shows the Portfolio Definition Maintenance screen. The mandatory fields are Product, Product Id, and Product Description. This screen has Settlement Details and Revaluation Details sections. The optional fields are Product Description, Product Type, Portfolio Reference, PF Customer, Costing Method, Customer Name, Frequency, Start Day, Start Month, Last Statement Date, Notional Revaluation Required, Post Deal-wise PL Entries, and Open Individual Position fields along with the P button. The Fields, Margin, Instrument Restrictions, Broker, and Role to Head Mapping options are available at the bottom of the screen.