Tools For The Business Office Tools For The Business Office are available as member benefits. Not a member? Join today and take advantage of all that Illinois ASBO has to offer! Purchasing Manual Member Benefit! This manual is intended to serve as a guide to the broader background of the overall purchasing process as well as, its specific and various components. Risk Management Handbook Member Benefit!This resource includes an introduction to insurance coverages and the loss exposures inherent in school operations as seen by the insurance industry. Business Office Calendar Member Benefit! The Business Office Calendar highlights the major tasks performed by school district officials relative to business office operations. Payroll Manual Member Benefit! Located on the peer2peer Network, the Payroll Manual is available to all members.