An invoice matching method known as three-way invoice matching is used in bookkeeping management and accounting to handle an invoice that has been received from someone just like how myBillBook works. It makes sure only legitimate payments are processed, avoiding invalid and fraudulent invoicing. For example, invoices, purchase orders and receiving reports all need to be matched for payment processing. This is known as a “three-way match” since the procedure verifies three documents to processes the payment.