NordInvoice / EN 16931 / BT-40
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BT-40Seller country code
BT-40 (Seller country code) 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.
ISO 3166-1 country of the seller.
Browse the interactive EN 16931 mapper Check your invoice in the free validator