Hi LukeFaulks,
If you’re using the final pay feature, you shouldn’t need to manually add those FP categories yourself. Once you tick Final pay in the employee’s pay run, it should automatically pull in the right final pay categories based on the leave being paid out. So those FP: Unused AL - ULT, FP: AL Loading - ULT, and FP: Unused LSL - ULT are usually handled for you as part of the process. If you want to have a closer look at how it all works, you can also check this link on processing a final pay for more info.
Cheers,
Doreen