We would then be dealing with joint administration but of course only in the scope of providing services to customers within this platform. In principle joint administration can be considered to occur when several entities create a common product or service. Other examples include jointly organizing a competition jointly maintaining a database of candidates within several companies for future recruitment purposes joint CRM for several entities or even jointly representing a client in court by legal advisors.
What follows from the CJEU rulings Unfortunately the criteria for determining whether we are dealing with joint controllership of personal data in a given case are complicated by the CJEU. He issued two important judgments in which Phone Number List he interpreted the concept of joint administration. In case C the CJEU found that the entity running a fan page on Facebook jointly controls personal data with Facebook . In turn in the recently issued judgment in case C the CJEU found that an entity placing a Facebook "Like" button on its website co controls personal data jointly with that entity.
It follows from the above decisions that we will deal with co administration not only when the entities make all arrangements jointly with regard to the purposes and methods of processing personal data but also when separate decisions of each entity will jointly build the entire process of personal data processing. in a specific case. You can agree or disagree with these decisions. However a detailed analysis of the issued judgments is a topic for a separate article. Certainly however all ethose intending to run a Facebook fanpage or provide social networking plug ins on their websites should pay special attention to the discussed CJEU rulings when designing their services and activities.