BR-16
EN 16931
FATAL
An invoice without lines is not an invoice: the standard requires at least one invoice line (BG-25).
How to fix it
- Add at least one
cac:InvoiceLinewith quantity, price and item name. - If you meant to void a document, issue a credit note (type 381) instead of an empty invoice.
Official rule text
An Invoice shall have at least one Invoice line (BG-25)
Developers also reach this page searching for an “invoice validation error”, an “e-invoice rejected” message, or how to fix a failed EN 16931 compliance check — it's the same issue, explained above.
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