in Official Account message template The operator will Official Account message template After login authorization to third-party platform management, WeChat server will send fans to Official Account message template The message, as well as the WeChat server to Official Account message template Event push (such as custom menu click events, fan unfollow notification, etc.) to the developer server (will be sent to the Official Account message template Message and Event Reception URL, see the application information page).
After receiving the above messages and events, the developer must do so in 5 Processing in seconds., such as the fan unfollow notification requires the developer to return Success, seePassive response to customer messages
In addition, the developer in lieu of licensing Official Account message template When receiving and processing messages, for security reasons, the process of sending and receiving messages must be encrypted and decrypted. This document describes how to use sample code access encryption and decryption, reference this document and the use of sample code, encryption and decryption access will be very simple. Please check specificallyMessage encryption and decryption instructions document。