Meta implemented a ban on advertisements from ByteDance, TikTok's Chinese parent company, across its platforms effective Thursday. The restriction covers ads and paid marketing messages from ByteDance directly, as well as third-party ads linking to TikTok.
Meta spokesperson Christopher Sgro said, "We don't have to run ads from a competitor whose goal is to pull people off our apps." Sgro characterized the refusal as normal business practice, saying Meta would continue competing on product and user experience.
The policy affects ByteDance advertising in Canada, Egypt, Indonesia, Japan, Thailand and Vietnam alongside the U.S. intensifying the rivalry between the two social media operators.
The move follows Meta's $17 billion child safety settlement, which imposed new restrictions for teen users. Meta called on TikTok and YouTube to adopt similar safeguards, launching an ad campaign to promote them. TikTok reportedly declined to host the campaign.
TikTok has also tightened its own linking policies, preventing users from including links that directly "open or log you into other social media apps," according to its support page. Both platforms are now actively limiting off-platform navigation to competitors.
The business calculus is straightforward: Meta's advertising ban targets ByteDance's ability to acquire users through paid channels on Meta's largest properties—Instagram, Facebook and Threads—removing a direct lever for competitor customer acquisition. For ByteDance, the exposure matters most in markets where TikTok competes directly with Meta's apps for engagement time and ad spend. The ban thus protects Meta's pricing power in those markets, preventing a rival from using its own ad network to drain users.