What does China UnionPay Express Pass Verification Code 24 mean?

China UnionPay Express Verification Code 24 is a short message verification code sent by the system during Alipay China UnionPay Express Payment. This verification code is usually sent after the user enters the payment password to confirm the security of payment. The reply "24" indicates that you agree to the operation, that is, the login operation is verified and confirmed successfully. China UnionPay Express is a mobile payment platform developed, built and maintained by China UnionPay in cooperation with commercial banks, payment institutions and other industries under the guidance of the People's Bank of China. China unionpay express APP was officially released on 20171211,and its main functions include mobile payment, bank card management and preferential treatment. Users can bind and manage various bank accounts through China UnionPay Express APP, and use mobile payment services, such as QR code payment, cardless payment, transfer, mobile phone flash payment, and boarding code. China UnionPay Express uses NFC-based contactless payment technology. Instead of unlocking, lighting up the screen or opening the APP, users can directly light up the screen and complete the payment by "waving" the mobile phone through the POS machine, which is more convenient and safer than scanning code payment.