WeChat has become the dominant mobile messaging platform in China through continuous innovation and integration of new features. It started as a basic messaging app but evolved into a platform integrating third-party services and bots. Popular bots on WeChat provide services like weather updates, transportation booking, and digital assistants. However, most bots currently take a hybrid approach using both conversational interfaces and graphical menus due to limitations of natural language processing. By opening its platform, WeChat has allowed services like ride-hailing, e-commerce, and travel to be deeply integrated, driving increased user engagement and stickiness on the platform.