When a customer pays by check, which information is required?

When a customer pays by check, it's essential to have the routing number, account number, and the customer's invoice number for several reasons. The routing number and account number help in processing the check and ensuring that the funds are correctly transferred from the customer's bank account to the payee. The invoice number serves as a reference to link the payment to a specific transaction or service provided, which aids in maintaining accurate records and effective account management. This information ensures that both the customer’s payment is accurately recorded and that there is a clear audit trail for future reference.

Having this specific data helps avoid confusion, ensures correct application of payments, and allows for smooth communication should discrepancies arise. The other options, while they may contain some useful details, do not encompass all necessary information for processing a check payment effectively.