CII-SR-492

Explanation

In the invoice totals block, the 'gross line total' (CII element GrossLineTotalAmount, not part of the European standard EN 16931) may appear only once. With several values it is unclear which one applies, and the totals checks become ambiguous.

How to fix

Output the value only once. (Typically a software-side issue, not user input — raise this with your invoicing software vendor; if you're receiving the invoice, ask the sender to address it with theirs.)