Rules / BR-CL-21 · Markdown

Peppol BIS Billing 3.0 · rule

BR-CL-21

Layer en16931·Checked against Peppol BIS Billing 3.0 2026.5

What does BR-CL-21 mean? Item standard identifier scheme identifier MUST belong to the ISO 6523 ICD code list

Why did my invoice fail BR-CL-21?

The scheme identifier of an item standard identifier must come from the ISO 6523 ICD code list. It qualifies which system (e.g. 0160 GTIN) issued the item's standard identifier. In UBL it is the schemeID attribute on cac:StandardItemIdentification/cbc:ID.

Official rule text

Item standard identifier scheme identifier MUST belong to the ISO 6523 ICD code list

Common causes

• Scheme name text ("GTIN", "EAN") used instead of the numeric ICD code
• schemeID omitted or set to an internal catalogue name
• A value not present in the ISO 6523 ICD list

How do I fix it?

<cac:StandardItemIdentification>
  <cbc:ID schemeID="0160">05012345678900</cbc:ID>
</cac:StandardItemIdentification>

Related rules

BR-CL-01 · BR-CL-03 · BR-CL-04 · BR-CL-05 · BR-CL-06 · BR-CL-07 · BR-CL-08 · BR-CL-10