BR-12: The sum of line net amounts is missing
This code shows up when an electronic invoice is validated. Here is what it means, why it fires, and what to change in the file.
Why this code appears
The summary does not carry the sum of the line net amounts (BT-106).
How to fix it
Fill SpecifiedTradeSettlementHeaderMonetarySummation/LineTotalAmount with the sum of the net amounts of every line.
Where it happens
This code comes from EN 16931, the European e-invoicing standard. It concerns business term BT-106.