Disclosed are methods, systems, and computer program products for collecting and communicating temperature and volume data directly from a dispenser for use during a book to physical reconciliation process. The temperature and volume readings can be received directly from a dispenser by at least one of a retail system and a central inventory management system. The method can include collecting flow data indicative of a volume of a liquid product dispensed from the dispenser at a plurality of times during a defined time interval and collecting temperature data indicative of a temperature of the liquid product dispensed from the dispenser at the plurality of times during the defined interval. Once collected, the temperature data and the flow data can be transmitted to at least one of a retail system and a central inventory management system.