The N4 Billing customizationis a vast improvement over the core invoice and payment modules of N4. It makes the payment process much easier by grouping multiple BLs/invoices as a single transaction. The billing clerk can search for the transaction number to view the number of BLs, total transaction amount and total units linked to the transaction and accept the payment. The consignee can choose to pay all or a few invoices from the list. Other features include preview, print, email invoices of all the BLs linked to the transaction in a single PDF file.