Wechat is the biggest PPM platform, it is developed by Tencent in China and has 700 million users around the world. Wechat integrates the function of Whatsapp, Facebook, Mobile Application and E-commerce into one, making it a multi-functional tool for individuals and enterprises. Wechat allows enterprises to advertise on its platform with the use of Official Accounts, which helps to release information and advertisements to followers.