An incorrect payroll ID on Revenue Online Service (ROS) files is an issue that can disrupt payroll processing and reporting.
This problem arises due to discrepancies or errors in payroll setups or employee records, resulting in mismatched or invalid payroll IDs in the system.
To ensure the payroll ID is correct, use the Retrieve New Employee RPN option when registering a new employee or a rejoiner to obtain and pull in the tax certificate.