A record with the same submission is already exists. We were unable to process your submission because we already have a submission with this submission ID.
This indicates the submission has already been previously submitted and accepted.
We have seen responses from the ATO "get lost" and a response is not sent from the ATO that the submission is successful.
Solution: You can check with the ATO or through support quoting your submission ID. An example of the pay event reference is displayed above as "PAYENNT-89123591763-6841".
Ther is a "Submit as new" option available in the "Resubmit" tab.