BT-1

Invoice number

Raw

Unique identifier of the invoice, assigned by the seller. It identifies the document throughout the exchange and must not repeat per seller.

Where does it live in the XML?

UBL (XRechnung)
cbc:ID
CII (XRechnung, ZUGFeRD, Factur-X)
rsm:ExchangedDocument/ram:ID

Checked by these rules

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← All EN 16931 terms
Semantics: EN 16931-1. Simplified explanation in our own words — the norm is authoritative.