This means that to generate your health code, you must know your city and location, so you need to get your authorization to get your location service and authorization. If you don't agree, you can't effectively generate the health code. The health code is a dynamic real-time QR code generated in the mobile phone-related APP. As an individual entering and leaving electronic certificate, the QR code can be declared once, which is universal in the whole city. Therefore, the voucher must be based on real data, so when applying for health code, you will be prompted to obtain the authorization of location service and authority to generate real-time health code.