I added a second administratot to manage the licences but whan he entered in the adobe account account, he accanot see manage the team (cannot see and cannot assign the licences bought). When i entered with my account (primary administrator account, i can do whatever i want).
The only difference i can see is the invitation is still pending for the second administrator even after having accepted the invitation.
Please make sure that the secondary admin you invited did accept the invite successfully.
You can check the status in you admin console as well.