Is Haiyan SMS out of date

No, Haiyan SMS is still an effective marketing method. In promotion activities, member marketing, customer service and other aspects, SMS can quickly transmit information to a large number of users, and can achieve good results in a short time.

With people's increasing attention to information security and privacy protection, Haiyan SMS is also facing some challenges. Some users are tired of receiving business messages frequently, and even regard them as harassing messages.