EN16931 1.3.16 · UBL / CII · Severity: ERROR
Each Invoice line shall have an Item net price (BT-146)
Every invoice line must specify the item net unit price (BT-146) exclusive of VAT.
- Rule ID & Severity
BR-26· ERROR- Standard & Scope
- EN16931 1.3.16 · UBL / CII
- XPath Condition
exists(cac:Price/cbc:PriceAmount)- Target XML Path
cac:InvoiceLine/cac:Price/cbc:PriceAmount
Find the source field
cac:InvoiceLine/cac:Price/cbc:PriceAmount
Match namespace URI and element name, not a particular prefix spelling. The validator reports the full expanded-name source path when the published rule supplies a location.
Common causes
- Line total was exported without a unit price element.
Invalid and corrected fragments
<!-- cac:Price/cbc:PriceAmount missing -->
<cac:Price><cbc:PriceAmount currencyID="EUR">75.00</cbc:PriceAmount></cac:Price>
Include cac:Price/cbc:PriceAmount (UBL) or ram:NetPriceProductTradePrice/ram:ChargeAmount (CII) on every line.
Open BR-26 in en16931-validator →
Verify the whole document
These are fragments, not complete invoices. The exact rule is exercised by synthetic mutation tests against the stated package. Correcting one field does not prove conformance; run the full selected validator again. Published messages and severity remain authoritative.
Explanation record: 2026-10-14 · Local WebAssembly / SaxonJS validation. No invoice-derived report is published as a search page.