BT-24: Specification Identifier (CustomizationID)

Identifier specifying the CIUS profile and version (e.g. XRechnung 3.0, ZUGFeRD EN 16931).

BT-24•Mandatory (1..1)•EN 16931-1 / XRechnung 3.0 / ZUGFeRD 2.3

Technical Specification

Requirement & Cardinality

1..1(Mandatory)

Mandatory (1..1) identifying the standard version

Data Type

Text / URI

Semantic data format according to European Standard EN 16931-1

XML Syntax Mappings

Exact field location in UBL and CII XML trees

UBL 2.1(XRechnung / Peppol BIS)

Invoice/cbc:CustomizationID

UN/CEFACT CII D16B(ZUGFeRD 2.3 / Factur-X)

rsm:CrossIndustryInvoice/rsm:ExchangedDocumentContext/ram:GuidelineSpecifiedDocumentContextParameter/ram:ID

What does BT-24 mean?

The specification identifier (BT-24) specifies which exact CIUS or extension rule applies to this invoice XML. Validators use BT-24 to load the respective Schematron validation rule set.

XML Syntax & Code Example

OASIS UBL 2.1 (XRechnung)

<cbc:CustomizationID>urn:cen.eu:en16931:2017#compliant#urn:xoev-de:kosit:standard:xrechnung_3.0</cbc:CustomizationID>

Business Rules & Schematron Checks

BR-01

An invoice shall have a Specification identifier (BT-24).

Check BT-24 in your invoice

Use the XML paths above to locate BT-24. A snippet illustrates this field; it is not a complete invoice. After correcting a value in the source application, export and check the entire file again.

Find rule violations in the validator Read invoice values in the viewer

Official specifications and rule sets

Requirements depend on the invoice profile and version. Consult the matching specification for mandatory fields, code lists and rules; Peppol-specific requirements do not automatically apply to every ZUGFeRD invoice.

BT-1

Invoice Number

Unique identifier of the invoice assigned by the seller.

BT-3

Invoice Type Code

Code specifying the functional type of the invoice (e.g. 380 for commercial invoice, 381 for credit note).

BT-10

Buyer Reference / Leitweg-ID

An identifier assigned by the buyer to route the invoice to the proper department (e.g. Leitweg-ID).

Create compliant E-Invoices easily

Create XRechnung and ZUGFeRD invoices in Billance and check the exported file locally. Use this guide to understand BT-24 and review your invoice details before sending.

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