The card issuing function of WeChat applet is usually called "coupon center", and the specific name of WeChat applet may be different for different developers. As the name of WeChat applet, "coupon center" is mainly used to provide users with a platform to receive coupons, discount codes and other preferential information. Through the coupon collection center, users can conveniently obtain coupons provided by merchants and enjoy corresponding discounts or concessions when spending. At the same time, the coupon center also provides a convenient channel for merchants to promote and market their own products or services.

It is worth expanding that the card issuing function of WeChat applet is not limited to receiving coupons, but also includes issuing membership cards and loyalty cards. These card issuing functions are designed to enhance the shopping experience and loyalty of users, and at the same time provide businesses with more marketing means and the possibility of data analysis. By publishing WeChat applets, businesses can better interact with users, provide personalized services, and monitor users' consumption behaviors and preferences in real time, so as to carry out accurate marketing and sales strategies. Therefore, the card issuing function of WeChat applet has been widely used in e-commerce, retail and other industries.