This opinion from the Article 29 Working Party provides guidance on the way to interpret and implement the right to data portability as introduced by the GDPR. It aims at discussing the right to data portability and its scope. It clarifies the conditions under which this new right applies taking into account the legal basis of the data processing (either the data subject’s consent or the necessity to perform a contract) and the fact that this right is limited to personal data provided by the data subject. (Issued December, 2016, and revised April 5, 2017)
The WP29 issued in December 2016 a complementary FAQ on data portability here.