Credit Notes

Correlated Credit Notes (Type 5.1)

For credit notes linked to a specific invoice:

• Use billing_reference to establish the correlation
• Do NOT include project_reference (BT-11) — the Greek Peppol Authority retrieves it from the original invoice

Non-correlated Credit Notes (Type 5.2)

For standalone credit notes, provide an additional document (BG-24) for routing:

• BT-122 (id): 1, 2|{Ενάριθμος}, or 3
• BT-123 (document_description): ##PROJECT|REFERENCE##
• BT-18 (document_type_code): 50

Example (1)

{
  "additional_documents": [
    {
      "id": "1",
      "document_type_code": "50",
      "document_description": "##PROJECT|REFERENCE##"
    }
  ]
}

Example PDE

{
  "additional_documents": [
    {
      "id": "2|2023ΤΑ07500012",
      "document_type_code": "50",
      "document_description": "##PROJECT|REFERENCE##"
    }
  ]
}

Example (3)

{
  "additional_documents": [
    {
      "id": "3",
      "document_type_code": "50",
      "document_description": "##PROJECT|REFERENCE##"
    }
  ]
}