Real-time query and management function. The localization platform of China Construction Bank, Mi Shang Office Automation System (OA2)V 1.0, was successfully launched in domestic and foreign institutions on March 3, 20 19, which marked that CCB became the first large-scale financial enterprise in China to systematically use the fully localized information technology platform on a large scale. The domestic office system of China Construction Bank has the functions of real-time inquiry, transfer business, withholding business, batch and fixed-frequency transactions and management.