Counterfoil rule note
Quoted from a public specification. This page is not a validator, and it is not tax, legal, or accounting advice.
An Invoice shall have the Sum of Invoice line net amount (BT-106).
Source: https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/BR-12/
Peppol BIS Billing 3.0, May 2026 release, EN 16931 model bound to UBL
Severity note: fatal, from the Flag column of the Peppol BIS Billing 3.0 UBL rules index retrieved 2026-10-18.
An invoice must have the sum of invoice line net amount (BT-106). The message says "shall have the". The published test checks that cbc:LineExtensionAmount exists. It does not calculate that amount. The context is the legal monetary total.
Add cbc:LineExtensionAmount on the legal monetary total. That element is the sum of invoice line net amount (BT-106).
Illustration of the condition in the official statement. Not an example published by the source.
Fails the stated condition. The legal monetary total has no line extension amount.
Passes the stated condition. The legal monetary total has a line extension amount element.
Copied from the source. Not reimplemented on this page.
cac:LegalMonetaryTotal
exists(cbc:LineExtensionAmount)
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