[Payroll] How to set up a pro rata monthly salary for an employee joined mid-month?

Step one: check if the employee has been added into a suitable wage group.

Step two: check if payroll adjustment has been made and if the effective date is correct.

Step three: Check if wage items under [Unpaid Unemployed Days] have been selected and if the settings of [Calculation Method] and [Fixed Salary Calculation for the Month of Salary Adjustment] are correct.