BT-156

Item buyer's identifier

BT-156 (Item buyer's identifier) is a business term of EN 16931, the European e-invoicing standard. This page shows where the field lives in a UBL invoice, how often it may appear and which validation rules check it.

Buyer's article number.

Group: BG-31 (Item information)

Cardinality: 0..1

UBL element: cac:InvoiceLine/cac:Item/cac:BuyersItemIdentification/cbc:ID

Example value: B-SKU-9

Browse the interactive EN 16931 mapper Check your invoice in the free validator