Is NL-01 a critical error?

NL-01 is a warning that may not always cause rejection, but it indicates a potential compliance issue that should be addressed.

Can NL-01 be automatically fixed?

NL-01 affects financial fields and cannot be automatically modified. This must be corrected in the source invoicing system.

Error codes · NLCIUS · Netherlands

NL-01Partly

Dutch sellers should include KVK number

This is the rejection, word for word: „[NL-01] Dutch sellers should include KVK number. This validation rule ensures Invoice compliance with NLCIUS (Netherlands).“

What to have readyThe correct figures from your bookkeeping; we show you which field is affected.

What we doReview your Invoice XML structure and correct the issue described by this rule. Check relevant cbc: and cac: elements per NLCIUS (Netherlands).

Choose the rejected invoiceor drop it here

XRechnung XML or ZUGFeRD PDF. Checking is free · corrected file €1.90 · the first every 30 days is free · no sign-up.

If you enter it yourself in your invoicing software

Before

<Invoice>
  <!-- Issue: Dutch sellers should include KVK number -->
</Invoice>

After

<Invoice>
  <!-- Issue resolved per NLCIUS (Netherlands) -->
</Invoice>

What the finding looks likeExample

FindingNeeds your check · NL-01

From youThe correct figures

ThenChecked again

ProofSHA-256 and /verify link after the check

Often appears together with

NL-02Dutch VAT numbers must be in correct format NL-R-001Dutch suppliers must include an invoice reference when issuing a credit...NL-R-009Dutch suppliers using order line references must also have an order...