1: Generally speaking, the reason why the personal data can't be modified is that the user's signature contains vulgar/uncivilized/advertising and other forbidden words, and the personal data can't be gaudy, and the user can't modify it after judging that it is illegal.

There will be two sessions recently. Many platforms restrict the modification of user information, so does Tik Tok. Therefore, in order to prevent political sensitivity, it should be normal after the two sessions.

3. Introduction The word "Tik Tok official" cannot appear here, and it is hopeless if it does. Tik Tok can appear, but the word "official" can't appear continuously, otherwise there will be a profile modification and it will be temporarily unavailable.

4. Modify the configuration file frequently. One failure can't even save the operation. Change it the next day, and it will be successful.

You can write your profile according to the above situation and the specific operation given in the above situation. I hope my answer is helpful to you. Welcome to adopt my answer. Thank you.