According to journalist Albert Lesan, if Barca want to sign Haaland, in addition to the necessary salary, Laiola also puts them on 3 conditions.

The reporter said that the three conditions proposed by Raiola are: 1, with Haaland as the core of the team, 2, giving Haaland the No. 9 shirt, 3, must have Champions League qualification.
Barca are currently out of the Champions League this season, with a five-point gap between them in La Liga and a chance to qualify for next season's Champions League by winning the Europa League.
In addition, the no. 9 shirt currently in Barca's squad is owned by Dutch striker Depay.