When you submit a batch the total of Wages and PAYG contained in the STP payload is submitted in the header of the message sent to the ATO.
When you have the total information displays in a successful batch response summary information.
This information may be used to match information submitted on your Business Activity Statement.
Submitting Current Year Updates
A "current-year" update is a catch all method for submitting STP payroll batches, if for any reason you have not been able to submit the STP batch at the time of the payroll.
When you do a "current-year" submission make sure you select an appropriate pay date range so your totals only include previously unsubmitted payroll entries.
The totals are returned from the ATO. The ETP taxable and ETP tax amounts are not returned in the summary totals.