If you see the error message when trying to view the gross to nett for an employee, this is because the employee doesn't have units populated against their personal rate or position and point while being paid against a unit type pay code.
To resolve this, follow the steps below in back office.
Click CorePay then click Reference.
Click Pay Codes.
In the Pay Code field, to select a pay code, click the list
icon.
In the Allowances/Payments tab, select the Scale Rates check box.
Click Rates then populate as necessary.
Click the save
icon.
Re-run the validation job.