bayern munich payer registration?

[Simon B]

Currently in my first season as Bayern manager. Ive signed santon, gourcuff, obertan and D'Agostino.
Its the third week in the Bundesliga and all four of the players ive signed i cant use. It says there not registered? how do i get them registered?

 

[Striker122]

there is a registration window for all german clubs its norm b4 the start of the league you will prob have to wait till the next window b4 you can do anything maybe try loaning them out but i dont believe there is anything you can do if the registration window is closed