BR-CO-15: Total amount with VAT mismatch
Severity: error
What it means
Invoice total amount with VAT (BT-112) does not equal Invoice total amount without VAT (BT-109) plus Invoice total VAT amount (BT-110).
Most common cause
TaxInclusiveAmount was edited independently of TaxExclusiveAmount and TaxAmount (e.g. off by a rounding cent).
How to fix it
Recompute TaxInclusiveAmount as TaxExclusiveAmount + TaxAmount at the source and re-issue. Not auto-repaired: arithmetic mismatch, reported expected-vs-found only.