Lens' promotion to Ligue 1 has finally been rubber-stamped but they will be subject to restrictions in the transfer market this season.
The club earned their elevation by finishing second in Ligue 2 last season but were initially prevented from taking their place in the top flight after failing to provide sufficient financial guarantees.
An appeal to the French Olympic Committee (CNOSF) was accepted last Friday after an injection of funds from Azeri owner Hafiz Mammadov and the French Football Federation (FFF) confirmed the decision on Monday, but with conditions attached.
An FFF statement read: "The Executive Committee of the French Football Federation, having taken note of the proposal of the conciliator appointed by the CNOSF in the case concerning RC Lens, decided to accept the proposal to replace the ban on accession to Ligue 1 with limits on the payroll of the club and/or controls on recruitment.''
Lens issued a statement in response on their official website, which read: "The wait has been long and exhausting for all supporters of the club.
"RC Lens thank everyone who has, at every level, rallied to pass this vital step for the future of the Sang et Or.''
The details of the financial sanctions will be determined by the National Directorate of Management Control (DNCG).
The FFF statement continued: "The Executive Committee asks the competent body, the DNCG, to meet as soon as possible to determine the appropriate measures for the participation of RC Lens in Ligue 1.''