If you receive a 'Failed Validation: Gateway Error', you need to:
Find the specific Validation error
Fix the error
Report the failed event to the ATO using STP Update.
Find the Validation Gateway Error
Go to Payroll, Transactions, Import and Export, STP Reporting.
Double-click on the Event with Failed Validation.
Check the Status column in the Period Totals table at the top of the event.
If the Status is Gateway Error, check the Status column against each employee for the exact error.
Once you have found the error, you will need to fix the cause. The fix is dependent on the cause. Search the Help Center for your exact error to find the fix. Once you've fixed the error, you can use STP Update to report your data.
If you need to report to the ATO before resolving the error, you can exclude the employee(s) causing the error and report all others. The employees causing the error can then be reported once corrected. To do this:
Go to Payroll, Transactions, Import and Export, STP Update.
Select the Payroll Company and all Location.
Tick All for Employee.
Choose the Financial Year.
Tick All Employees paid in the selected Financial Year.
Click Apply.
When the employees load into the STP Update Grid, the select checkbox will be ticked for all employees. Untick the employees you want to exclude.
Click Update ATO.
Complete the Declaration window and click Report.
Go to Payroll, Transactions, Import and Export, STP Reporting and ensure the Update Event is successful.