Germany’s Federal Cartel Office, or Bundeskartellamt, on Thursday banned Facebook from combining user data from its various platforms such as WhatsApp and Instagram without explicit user permission.

The decision, which comes as the result of a nearly three-year antitrust investigation into Facebook’s data gathering practices, also bans the social media company from gleaning user data from third-party sites unless they voluntarily consent.

“With regard to Facebook’s future data processing policy, we are carrying out what can be seen as an internal divestiture of Facebook’s data,” Bundeskartellamt President Andreas Mundt said in a release. “In [the] future, Facebook will no longer be allowed to force its users to agree to the practically unrestricted collection and assigning of non-Facebook data to their Facebook user accounts.”

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