1. After entering the Douyin APP main interface, click on "My" to enter the personal center, and then click on the three dots in the upper right corner.

2. On the main page of settings, click on Account and Security.

3. Click on Apply for official certification, then click on professional certification, select the certification field and fill in the actual information to complete the social position certification.

Douyin has various functions and is relatively complex. Other functions still need to be explored slowly!