Agencies are advised to submit their Agency Procurement Requests (APR) for their Microsoft requirements at least three (3) days before the end of the month to be able to utilize the current month's prices . Microsoft prices are based on foreign exchange rates and updated monthly. In order for the Procurement Service and the Microsoft fulfillers to process orders, a lead time of at least three (3) days is required. For APRs received beyond the cut off date, these will be processed using the following month's pricelist.