*LINE Official Accounts can use group chat only should they are already invited to the group by LINE consumers. บรอดแคสต์แบบระบุกลุ่มเป้าหมายคืออะไร 圍繞興趣開展，由用戶發起、用戶參與，較適合討論、招募與口碑擴散，缺點是官方不可控 The name of a corporation's official account features a grey, blue, or environmentally friendly icon beside it, and the type could be distinguished by the ic... https://backlink49516.is-blog.com/42614001/helping-the-others-realize-the-advantages-of-line-official-account