ATO System Issue Affecting STP Adjust Events
We have been notified by the ATO Digital Partnership Office that they have discovered a bug affecting the Payevent adjust service. This may cause customers to receive the error:
CMN.ATO.PAYEVNT.EM92172 – A record with the same submission ID already exists
This is due to a fault where only the first 20 characters of the submission ID are being checked instead of the full ID. If you encounter this error, we recommend trying to resend the adjust the next day.
The ATO has confirmed that this issue will be fixed in their production systems on 22 July 2025. If there are any delays, they will advise further.
For more information on STP Adjust Events, please see our FAQ:
What Are STP Adjust Events & How Can I Use Them To Correct BAS Pre-fill Amounts?
Important: Adjust events are not essential—they simply help update the ATO’s pre-filled W1 and W2 figures on your BAS. These pre-fill amounts are editable at lodgement time, and you should always verify and correct them manually using your actual payroll reports. If an adjust event fails, you can still lodge your BAS correctly by using accurate W1 and W2 totals from Lightning Payroll.
- 10/07/2025