Maintains and updates weekly Zone Pricing, monthly allowance programs for various customers and buying programs. Maintains and reviews items, vendor and customer profiles for accuracy. Collects, audits and maintains items and vendor documents and certificate library. Completes bill back for various programs and other miscellaneous billbacks. Maintains monthly reporting for velocity reports, rebate programs, and special customer contracts. Prepares price lists and related transaction documentation and reporting. Reviews daily exception reports for quality, accuracy, and timeliness of sales and purchasing related transaction/data by performing the following duties.