When selecting to change pay conditions, there is no option to choose for conditions to change with the next pay cycle. This means, we have to wait until IN that next pay cycle and then choose * From start of current pay cycle
It would mean that we can't immediately deal with the employee's change and have to set it aside for later.
If the option was there to change it at a specific date or from the next pay cycle, we could deal with it, and send the variation of contract to the employee before he starts the new pay cycle with new conditions.