Is it illegal for customers to send their own numbers in the Tik Tok group?

It is illegal for customers to send their own numbers in Tik Tok Group.

The management of Tik Tok Group will deal with members who send platform contact information such as numbers and WeChat without authorization. And your contact information is risky on the public platform, so be careful. Tik Tok officials also don't recognize the exchange of information on other platforms in case of being cheated.