BR-23 A line has no unit of measure code (BT-130)
Line 1 has no unit of measure code (BT-130). EN 16931 requires a code from UN/ECE Recommendation 20, not a free-text unit — "hours" is not valid, "HUR" is.
This rule is implemented and its error payload below is real, but the long-form write-up — normative text, worked example, divergence note — is not written yet. Everything the library knows about this rule is on this page. Ask and we will prioritise it.
- Business term
BT-130- Severity
fatal
What the library returns
The exact object in result.errors when this rule fires.
Generated by running @attestwire/en16931, not transcribed:
{
"rule": "BR-23",
"field": "BT-130",
"severity": "fatal",
"message": "Line 1 has no unit of measure code (BT-130). EN 16931 requires a code from UN/ECE Recommendation 20, not a free-text unit — \"hours\" is not valid, \"HUR\" is.",
"fix": "Set line.unitCode to the UN/ECE Rec 20 code: \"HUR\" hours, \"DAY\" days, \"C62\" one/piece, \"MTR\" metres, \"KGM\" kilograms, \"MON\" months.",
"example": "\"unitCode\": \"HUR\"",
"xpath": "/ubl:Invoice/cac:InvoiceLine[1]/cbc:InvoicedQuantity/@unitCode",
"docsUrl": "https://attestwire.com/rules/BR-23"
}
xpath locates the element in the generated UBL document,
which is where a KoSIT or Peppol validator will report the same problem.
A passing value
"unitCode": "HUR"The fix
Set line.unitCode to the UN/ECE Rec 20 code: "HUR" hours, "DAY" days, "C62" one/piece, "MTR" metres, "KGM" kilograms, "MON" months.