Identify and facilitate resolution with customer and other company departments providing guidance on complex issues for problem resolution, including short-pays, credits, and fully open invoices, as well as in Electronic Data Interchange (EDI) transmissions, missing invoices/documentation, rate and accessorial disputes. Analyze and collect receivable balances for a mid-size portfolio with varying degrees of complexity - identifying, validating, and resolving customer balances and deductions for timely resolution.