CMN.ATO.GEN.200001: An unexpected error has occurred. Please contact the Tax Office

Validation Error 

This validation error occurs when there is an issue on the ATO’s side, often caused by a timeout within their system.

How to resolve this Validation Error 

To resolve this issue, 

• Try lodging the SMSF Tax Return again.
• If the error persists, please contact the ATO on their Superannuation enquiries line: 13 10 20.