Provision to feed/upload customer PO and OR Work Order which can be linked to the raised invoices on the work processed corresponding to the PO. That way the POs received can be stored in the system at one place, also easy to track the progress of the PO, link invoices generated with the PO quantities, track balance quantities, track P&L of the certain work/PO/Work Order and understand performance graph of individual order/customer/item to a specific period, get reports of orders in hand, balance order etc.