Article 54 2.

For the purposes of applying Article 62(3) of the basic Regulation, the competent institution of the Member State to whose legislation the person concerned was subject in respect of his/her last activity as an employed or self-employed person shall, without delay, at the request of the institution of the place of residence, provide it with all the information necessary to calculate unemployment benefits which can be obtained in the Member State where it is situated, in particular the salary or professional income received.