Best Practices for Handling Invoice Disputes

What methods or processes do businesses practice when handling invoice disputes? Is it a one step process that Accounts Receivable handles? Are sales reps or the billing department involved? Julie Roberts, ARM, Manager, Revenue Accounting, Ingram Barge Company "Here at Ingram, the Billing group handles all invoice disputes in the beginning. The group has access to all the systems so they can track and determine what is wrong with the invoice. If they cannot solve the problem, then the…