Make sure to enter a self-explanatory name for the surcharge, so that it can be assigned to employees more easily, e.g. “Surcharge Night/Sat/Sun/Hol”.

Here, all surcharges (for night work, Saturday work, Sunday work and holiday work) are assigned to the employee  Other employees might work on a public holiday, but never at night or during weekends, thus requiring a different surcharge, e.g. “Surcharge Hol” (holiday).