Why does my Peppol invoice fail with R050?

Because the seller's electronic address (cbc:EndpointID) is either missing, empty, or has no @schemeID. The Peppol network needs this field to route the invoice on the network.

What value should EndpointID contain?

The supplier's Peppol participant identifier — usually a national registration ID (VAT, KVK, CVR, OIN, CBE) paired with the matching CEF EAS scheme code.

Is EndpointID the same as the VAT number?

Not always. Some countries use VAT (DE, ES, IT via 9930/9910/9906) but others use registry numbers (NL uses KVK / 0106, DK uses CVR / 0184). Use the ID that the supplier registered on the Peppol network.

Can this error be auto-fixed?

Yes, if the supplier's ID and country are known. Invoice Navigator infers the correct EAS scheme from the country and identifier format, then injects a valid cbc:EndpointID.

Do I need to fix the buyer endpoint too?

Yes — cac:AccountingCustomerParty/cac:Party/cbc:EndpointID is required by most CIUS profiles. Missing it fires PEPPOL-EN16931-R010.

Error codes · Peppol BIS 3.0

PEPPOL-EN16931-R050Fixable here

Seller electronic address (EndpointID / BT-34) MUST be provided

This is the rejection, word for word: „[PEPPOL-EN16931-R050] PEPPOL-EN16931-R050 is a fatal Peppol BIS 3 rule that fires when the seller's electronic address (cbc:EndpointID inside cac:AccountingSupplierParty/cac:Party) is missing or empty. In Peppol, the seller's EndpointID is the address the receiving Access Point uses to route the document back to the sender, so the network refuses invoices without it.“

The rule asserts that cac:AccountingSupplierParty/cac:Party/cbc:EndpointID is present, non-empty, and carries an @schemeID from the CEF EAS code list (see BR-CL-25). Common valid values in the EU include 0088 (GLN), 0106 (KVK), 0184 (CVR / DK), 0190 (OIN), 0192 (Norwegian org no.), 0208 (BE 0/2 CBE) and 9930 (DE VAT-based Peppol ID). If EndpointID is present but @schemeID is missing or unknown, BR-CL-25 fires instead of R050.

What to have readyThe missing value from your purchase order, contract or bookkeeping.

What we doAdd a cac:AccountingSupplierParty/cac:Party/cbc:EndpointID element that contains the supplier's Peppol participant identifier and set @schemeID to the correct EAS code for the supplier's country.

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

<cac:AccountingSupplierParty>
  <cac:Party>
    <cac:PartyName>
      <cbc:Name>Acme Ltd</cbc:Name>
    </cac:PartyName>
    <cac:PostalAddress>...</cac:PostalAddress>
  </cac:Party>
</cac:AccountingSupplierParty>

After

<cac:AccountingSupplierParty>
  <cac:Party>
    <cbc:EndpointID schemeID="0106">12345678</cbc:EndpointID>
    <cac:PartyName>
      <cbc:Name>Acme Ltd</cbc:Name>
    </cac:PartyName>
    <cac:PostalAddress>...</cac:PostalAddress>
  </cac:Party>
</cac:AccountingSupplierParty>

What the finding looks likeExample

FindingValue missing · PEPPOL-EN16931-R050

From youThe missing value

ThenPassed

ProofSHA-256 and /verify link after the check

Often appears together with

BR-CL-25Endpoint identifier scheme MUST belong to the CEF EAS code list PEPPOL-COMMON-R040GLN must have a valid format according to GS1 rules PEPPOL-EN16931-R010Buyer electronic address (EndpointID) MUST be provided