BR-63

Where the buyer electronic address (BT-49) is sent, it must carry a scheme identifier. The attribute says which register the identifier comes from — without it the value is only a string.

Severity
Error
Applies to
CII, UBL
Rule set
v2026-01-31

Official rule text

The Buyer electronic address (BT-49) shall have a Scheme identifier.

Why does BR-63 happen?

The same cause as BR-62, sharpened: for public bodies the Leitweg-ID is entered as the address, and then the scheme is 9958 rather than EM — a choice that only surfaces if the field exists at all.

How do you fix BR-63?

Set the schemeID attribute on cac:AccountingCustomerParty/cac:Party/cbc:EndpointID in UBL, and the corresponding schemeID on the same element in CII. PEPPOL-EN16931-R010 requires the address itself.

In the XML

A UBL fragment. The CII path is named above — same change, different element names.

Fails
<cac:AccountingCustomerParty>
  <cac:Party>
    <cbc:EndpointID>rechnung@behoerde-bonn.de</cbc:EndpointID>
    <cac:PartyName>
      <cbc:Name>Behörde Bonn</cbc:Name>
    </cac:PartyName>
  </cac:Party>
</cac:AccountingCustomerParty>
Fixed
<cac:AccountingCustomerParty>
  <cac:Party>
    <cbc:EndpointID schemeID="EM">rechnung@behoerde-bonn.de</cbc:EndpointID>
    <cac:PartyName>
      <cbc:Name>Behörde Bonn</cbc:Name>
    </cac:PartyName>
  </cac:Party>
</cac:AccountingCustomerParty>

NormAPI provides technical validation, not tax or legal advice.