If you were on leave with parental or sickness benefit during the salary review period, an agreement is in place between Lund University and the employee organisations Saco-S, OFR and SEKO which, under certain circumstances, allows for compensation to cover the difference between the payment you would have received if the Swedish Social Insurance Agency (Försäkringskassan) had based the level of payment on your revised salary, and the actual payment paid out until the new salary is approved.
Read more on the Staff pages:
Compensation for staff on parental leave or sick leave when the salary review is conducted | Staff Pages