Methods and systems, including computer program products, consistent with the invention may manage invoices for a customer. For example, methods consistent with the invention may obtain customer transaction data reflecting transactions made by the customer. The method may then generate, from the obtained customer transaction data, compressed transaction data and detailed transaction data, wherein the compressed transaction data without the detailed transaction data is used to generate an invoice to the customer. The method may then provide the compressed transaction data to a service processor for performing invoice management functions based on the compressed transaction data.