You need to have an account to log in to the external service platform. If you don’t have an account, you need to register an account first. After approval by the Patent Office, you will be given a user code and password. However, before logging in (it is best to log in with an IE browser) , the lower the version, the better), you also need to install the control and CA certificate. For details, see "Control Download" below the "Login to External Services" button.