Rules / DE-R-007 · Markdown

Peppol BIS Billing 3.0 · rule

DE-R-007

Layer peppol·Checked against Peppol BIS Billing 3.0 2026.5

What does DE-R-007 mean? If both supplier and customer are located in Germany, the element "Seller contact email address" (BT-43) shall be provided.

Why did my invoice fail DE-R-007?

For domestic German invoices (supplier and customer both in Germany), the Seller contact email address (BT-43) must be provided. This German national rule guarantees the buyer an electronic contact channel for invoice queries. In UBL the value lives in cac:AccountingSupplierParty/cac:Party/cac:Contact/cbc:ElectronicMail.

Official rule text

If both supplier and customer are located in Germany, the element "Seller contact email address" (BT-43) shall be provided.

Common causes

• cbc:ElectronicMail is missing from the seller's cac:Contact block
• Seller master data contains no email address
• The email is placed in cbc:EndpointID or elsewhere instead of the contact element

How do I fix it?

<cac:AccountingSupplierParty>
  <cac:Party>
    <cac:Contact>
      <cbc:ElectronicMail>invoicing@seller.de</cbc:ElectronicMail>
    </cac:Contact>
  </cac:Party>
</cac:AccountingSupplierParty>

Related rules

DE-R-001 · DE-R-002 · DE-R-003 · DE-R-004 · DE-R-005 · DE-R-006 · DE-R-008 · DE-R-009