The Supreme Court has upheld a federal ban of TikTok, and users are scrambling. The ban, which is expected to take effect on January 19, is a looming crisis for the countless small businesses and creators who’ve built their livelihoods on the platform.

The US supreme court ruled on Friday to uphold a nationwide ban of the video-sharing platform, which is set to take effect from Sunday. Now, brands and creators are scrambling to adapt their campaign strategies.

The decision came a week after the justices heard a First Amendment challenge to a law aimed at the wildly popular short-form video platform used by 170 million Americans that the government fears could be influenced by China.