ATO Error code: CMN.ATO.GEN.001017 - Field not supplied in valid format.
The error below indicates that the address kept on record at the ATO does not have a valid post code entered.
You need to update the organisation's post code held with the ATO to be able to bypass this warning and submit a valid BAS.
You can change the business and postal address for Activity Statements by using the ATO Business portal. Ensure you update the correct CAC(s) and the Postal and Business addresses are updated.