BR-24: invoice line net amount missing
One or more invoice lines have no net amount (BT-131). This is the line amount excluding VAT — it feeds directly into the document's net total (BT-106), and its consistency is checked by BR-CO-16.
Last updated: 2026-07-09
Affected field
BT-131 Line net amount / cac:InvoiceLine/cbc:LineExtensionAmount (UBL) / ram:SpecifiedTradeSettlementLineMonetarySummation/ram:LineTotalAmount (CII)
Cause
A line was created without a calculated amount (often an informational or header line mistakenly generated as a billing line), or an export bug leaves the field empty even though quantity and unit price are set.
Fix
Check every line and fill cac:LineExtensionAmount (UBL) or ram:LineTotalAmount (CII) with the net amount (quantity × unit price, less line-level allowances). This must then sum correctly into the document net total — see BR-CO-16.
Check your invoice for this and other errors.
Validate your invoice →Mandate context
Frequently asked questions
Does the net amount include VAT?▼
No. BT-131 is the line amount excluding VAT. Line-level VAT is a separate field, checked by the VAT category rules (BR-S-05, BR-Z-05, etc.).
Does a €0.00 line trigger this error?▼
No, as long as the field is present with the value 0.00 the rule is satisfied — BR-24 checks that the field exists, not its value. A complimentary item can legitimately show 0.00.