Systems and methods for synchronizing data between a communications management system and data management system. In some implementations, contact data may be requested from a data management system external to and/or operated by a distinct entity with respect to a communications management system. The requested contact data may be received at the communications management system and the communications management system may be used to establish a communication using at least one contact from the requested contact data. The requested contact data may be updated using data generated during the communication and then updated contact data may be transmitted to the data management system to synchronize the two systems.