Facebook must obtain consent to combine user data from different sources unless it first gains explicit consent. The decision has not yet gone into effect. Facebook has one month to appeal the decision to the Dsseldorf Higher Regional Court. If the decision proceeds, the technology giant will have 12 months to comply. Facebook says it plans to appeal decision, noting that it has been in discussions with the Bundeskartellamt for more than two years. In December 2018, Facebook had 1.52 billion daily active users and 2.32 billion monthly active users.”]
Source: https://www.cuinfosecurity.com/german-antitrust-office-restricts-facebook-data-processing-a-12007