Original sentence: 29 WP) was an advisory body made up of a representative from the data protection authority of each EU Member State, the European Data Protection Supervisor and the European Commission
Edited sentence: 29 WP) was an advisory body that was erected under art.29 of the Data Protection Directive of 1995.It consisted of a representative of the data protection authorities of each EU Member State, the European Data Protection Supervisor and the European Commission.The Working Party issued a wide variety of guidelines and opinion, including on the notion of consent in EU data protection law, the purpose limitation principle, the concept of data controller and processor and the legitimate interests of the data controller.These guidelines and opinions are still valuable under the GDPR because the main concepts of EU data protection law have not changed