BR-CO-14
A rule of the European standard EN 16931 – applies to every invoice following the standard, including Peppol BIS Billing 3.0.
What this error means
BR-CO-14
Invoice total VAT (BT-110) must equal the sum of all VAT category amounts (BT-117).
How to fix it
Add up the TaxAmount of every VAT breakdown (TaxSubtotal) and put that sum into TaxTotal/TaxAmount.