This issue is to do with the Home Country field not being set in the Employee Masterfile, Tax tab. If the employee is a working holiday maker, or a non-resident, a country value needs to be entered in this field. The Tax Cert Code and Tax Scale should also be set to WHM.
In Attaché Payroll, navigate to Payroll, Masterfile, Employee Details, and Maintain.
From the Tax tab, if the employees tax cert code is Individual non-business, they can only have an Employee Status (Pay Details tab) of Casual, Permanent, or Full Time).
Save the changes by clicking Accept (F9).
In Single Touch Payroll in Attaché Online, within the ATO Rejected batch, click the Refresh Batch button, and within the next window click the Run Update button.
The Status changes to Ready to Submit.
Re-submit the batch to the ATO.
