The Grand Chamber of the CJEU heard ByteDance’s appeal in Case C-627/24 P on Tuesday, the first DMA gatekeeper challenge to reach the bloc’s highest court. ByteDance’s TikTok went before the Grand Chamber of the Court of Justice of the European Union on Tuesday in a last attempt to escape its designation as a “gatekeeper” under the Digital Markets Act, a label the company has fought since the Commission applied it in September 2023. The hearing in Case C-627/24 P is the first DMA gatekeeper appeal to reach the EU’s top court. A General Court ruling in July 2024 dismissed ByteDance’s initial challenge , finding that TikTok met all three criteria for designation: significant market impact, status as an important business gateway between firms and consumers, and an entrenched, durable position in that role. ByteDance appealed in September 2024, and Tuesday’s hearing put those findings back in play.…