Error: CMN.ATO.INCDTLS.000390 - Trusts income instance is incomplete. Where a Trust income instance is present, at least one of the following must be provided: Trust primary production details, Trust non-primary production details or Trust credits from income and tax offsets details.
Solution: Please enter 0 at "Share of credit for tax paid by trustee" field in Income of Trust worksheet via Income > Trust tab.

If the suggested solution did not resolve the error completely, try to enter a zero in the relevant fields within the Trust income details (primary production, non-primary production, credits from income, and tax offsets) as well. This helps ensure all mandatory fields are explicitly completed and prevents the error from recurring.Re-validate the form after these updates to confirm the error is resolved.