CMN.ATO.TPAR.000016Supplier Contact Name must be present

First ask, 'who is supplying the data via SBR?'.

- If it is a business lodging on its' own behalf, then fix the Signatory details for the business.

- If it is an accounting or bookkeeping firm, fix the signatory details for the firm.

Navigate to  Gear Leaver > "Profile"

Select "Settings"
Then, "Contact Details" > Signatory