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DK-R-008: For Danish Suppliers PaymentID is mandatory and MUST start with 01#, 04# or 15#…

Peppol national rule · Error · UBL, CII

StandardPeppol BIS Billing 3.0 country rules (NL, DE, IT, SE, DK, NO, GR, IS)CountryDenmarkSeverityError: the invoice is rejectedSyntaxUBL, CIIApplies toOnly when the seller (or for some rules the buyer) is in the named country: the rule is triggered by the country code of the party. Dutch rules implement NLCIUS, German rules the XRechnung requirements inside Peppol.

Official rule text

[DK-R-008] For Danish Suppliers PaymentID is mandatory and MUST start with 01#, 04# or 15# (kortartkode), and PayeeFinancialAccount/ID (Giro kontonummer) is mandatory and must be 7 or 8 numerical characters long, when payment means equals 50 (Giro)

Why this error occurs

This rule only applies when another field has a certain value (for example a payment means code or an invoice type). Your file triggers the condition but does not provide the data that then becomes mandatory, or provides data that is then forbidden.

How to fix it

Either change the triggering value so the condition no longer applies, or add/remove the dependent elements as the rule text describes. Check the condition in the XPath test above to see exactly which value triggers it.

What the validator checks

Checked element (context):

UBL

ubl-invoice:Invoice[$DKSupplierCountry = 'DK' and $DKCustomerCountry = 'DK']/cac:PaymentMeans

Test (XPath):

not((cbc:PaymentMeansCode = '50')
						and not(((substring(cbc:PaymentID, 1, 3) = '01#')
								  or (substring(cbc:PaymentID, 1, 3) = '04#')
								  or (substring(cbc:PaymentID, 1, 3) = '15#'))
								and matches(cac:PayeeFinancialAccount/cbc:ID, '^[0-9]{7,8}$')
								)
						)

CII

rsm:CrossIndustryInvoice[$DKSupplierCountry = 'DK' and $DKCustomerCountry = 'DK']/rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeSettlement/ram:SpecifiedTradeSettlementPaymentMeans

Test (XPath):

not((ram:TypeCode = '50')
                              and not(((substring(../ram:PaymentReference, 0, 4) = '01#')
                                        or (substring(../ram:PaymentReference, 0, 4) = '04#')
                                        or (substring(../ram:PaymentReference, 0, 4) = '15#'))
                                      and (string-length(ram:PayeePartyCreditorFinancialAccount/ram:IBANID/text()) = 7)
                                      )
                              )

Check your invoice

Drop your XML or PDF on the validator and every failed rule is linked to its page here. Free, no account, the file is not stored.

Check your invoice →

Same check via API:

curl -F file=@invoice.xml https://einvoicechecker.com/v1/validate

Related rules

Frequently asked questions

What does DK-R-008 mean?

DK-R-008 is a peppol national rule: For Danish Suppliers PaymentID is mandatory and MUST start with 01#, 04# or 15# (kortartkode), and PayeeFinancialAccount/ID (Giro kontonummer) is mandatory and must be 7 or 8 numerical characters long, when payment means equals 50 (Giro)

Will my invoice be rejected because of DK-R-008?

Yes. DK-R-008 is flagged "fatal"; validators (KoSIT, Peppol access points, the German ZRE/OZG-RE portals, KSeF) reject the invoice until it is fixed.

Which formats does DK-R-008 apply to?

Only when the seller (or for some rules the buyer) is in the named country: the rule is triggered by the country code of the party. Dutch rules implement NLCIUS, German rules the XRechnung requirements inside Peppol. Syntax: UBL and CII.

Source: Peppol BIS Billing 3.0.20 national rules (November 2025). Catalogue generated from the official rule sets on 2026-10-15.