E-invoice / Rules / BR-21

E-invoice rule EN 16931 schematron

BR-21: Line 1 has no identifier (BT-126)

Line 1 has no identifier (BT-126). Add cbc:ID, for example 1.

Original wording of the rule

[BR-21]-Each Invoice line (BG-25) shall have an Invoice line identifier (BT-126).

Source of the quotation: EN 16931 schematron (ConnectingEurope/eInvoicing-EN16931, licence EUPL 1.2)

How to fix it

1. Open the XML file and find the element cac:InvoiceLine/cbc:ID.
2. Add or correct the element the way the wording of the rule above asks for.
3. Save the file and check it again with our checker. It runs in your browser, the file is never uploaded.

A correct UBL 2.1 snippet

<cac:InvoiceLine
    xmlns:cac="urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2"
    xmlns:cbc="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">
  <cbc:ID>1</cbc:ID>
</cac:InvoiceLine>

The snippet is only the part of the document the rule is about. Put it in the right place inside your invoice; the namespaces are written here only so that the snippet reads on its own.

When it is reported

Profile: EN 16931, Peppol BIS Billing 3.0, XRechnung 3.x

How we rate it: error

UBL elements: cbc:ID

Where we point in the file: /Invoice/cac:InvoiceLine[1]

Related rules

• BR-19 The seller tax representative (BG-11) needs a postal address
• BR-20 The tax representative address is missing the country code (BT-69)
• BR-22 Line 1 has no quantity (BT-129)
• BR-23 Line 1: the quantity needs a unit of measure code (BT-130)
• BR-24 Line 1 has no net amount (BT-131)

Our check is not complete: we do not check the XSD schema and we do not implement every rule, and a file that passes says nothing about whether the buyer or the Peppol network will accept it. Licences for the quoted wordings are listed in our sources.