FAP, for Find A Part, has many uses. The main is to find a sale to a customer by entering the part number. It will find past or even today's sales. FAP display's the Customer's number and name. You won't need display each invoice to find the right sale.
FAP also display's the bin. If when selling a part bought out and you had overroad the bin. If you got that part back, you'd know where to return it.
FAP shows cores, GM State codes, twelve months of history and thirteen other part number information fields, allows you to view the entire invoice/RO as well.