NordInvoice / EN 16931 / BT-158
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BT-158Item classification identifier
BT-158 (Item classification 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.
Classification code such as UNSPSC or CPV.
Browse the interactive EN 16931 mapper Check your invoice in the free validator