(46)Close cooperation between the Authority and the ESRB is essential to give full effectiveness to the functioning of the ESRB and the follow-up to its warnings and recommendations. The Authority and the ESRB should share any relevant information with each other. Data related to individual undertakings should be provided only upon reasoned request. Upon receipt of warnings or recommendations addressed by the ESRB to the Authority or a national supervisory authority, the Authority should ensure follow-up as appropriate.