The reason why you cannot write copy when posting videos on Douyin is that when writing Douyin copy, the most important thing is not to include contact information. Copywriting with contact information is considered a violation and may cause the copy to be banned. Filtering or video review failed. The most important thing when writing Douyin copywriting is not to include contact information. Copywriting with contact information is considered a violation.

Copywriting refers to developing creative ideas based on the direction and concepts provided by planning, and using words to vividly express the company's business strategy and brand appeal. Copywriting is different from the expression techniques used by designers using pictures or other means. It is a creative expression process, development process and deepening process that follow the advertising creativity. Copywriters are responsible for creating various creative texts such as slogans, titles, themes, graphic copywriting, video copywriting, soft copy, and public account articles.