The Data Protection Commissioner has fined Tiktok €345 million.
It relates to the "processing of personal data relating to child users" between July and December 2020.
The company has been ordered to bring its processes into compliance.
The Commissioner examines specifically things like platform settings for child users, age verification, and the transparency information for children.
The body found a number of infringements of GDPR and issued a number of corrective measures, including an order for the platform to bring its processing into compliance within three months and that fine of €345 million.