Nike maintains an allowance for doubtful accounts because they make ongoing estimates regarding the collectability of their receivables. You must have an invoice from Wayne.Locate your Customer ID and Personal Identification Number (PIN) to log in, view, and pay invoices. Welcome to the Student Accounts Receivable Office (SAR) at Wayne State University. We are located on the fourth floor of the Welcome Center. Accounts Receivable Specialist. New. Redwood City, California. Apply to Packer, Caddie, Order Picker and more!