GetInvoiceResponse

{
    "status": "queued",
    "invoice_id": "f4c4edb8-11e0-4b33-bcc1-482dc59ebb32",
    "invoice_number": "string",
    "processing_mode": "async",
    "document_format": "xrechnung_ubl",
    "document_profile": "string",
    "request_payload": {
        "document_format": "xrechnung_ubl",
        "invoice_number": "RE-2026-001",
        "issue_date": "2026-04-07T00:00:00.000Z",
        "due_date": "2026-04-21T00:00:00.000Z",
        "delivery_date": "2026-04-07T00:00:00.000Z",
        "buyer_reference": "04011000-12345-03",
        "invoice_note": "Projektphase April 2026",
        "order_reference": "PO-2026-001",
        "payment_means_code": "58",
        "payment_terms_note": "Zahlbar bis 2026-04-21 ohne Abzug.",
        "currency": "EUR",
        "invoice_type_code": "380",
        "seller": {},
        "buyer": {
            "name": "Kunde GmbH",
            "company_supplement": "z. Hd. Einkauf",
            "street": "Hauptstr. 5",
            "postal_code": "54321",
            "city": "Hamburg",
            "country_code": "DE",
            "email": "buyer@example.com",
            "electronic_address_scheme": "EM",
            "contact_name": "Einkauf"
        },
        "branding": {
            "logo_url": "https://customer.example/logo.png"
        },
        "items": [
            {
                "name": "Webentwicklung",
                "description": "Implementierung und Review",
                "quantity": 10,
                "unit_code": "HUR",
                "price": 100,
                "tax_rate": 19,
                "service_period_start": "2026-04-01T00:00:00.000Z",
                "service_period_end": "2026-04-30T00:00:00.000Z"
            }
        ]
    },
    "validation": null,
    "xml": null,
    "pdf_base64": null,
    "queued_at": "2019-08-24T14:15:22.123Z",
    "started_at": "2019-08-24T14:15:22.123Z",
    "finished_at": "2019-08-24T14:15:22.123Z",
    "processing_error": "string",
    "next_poll_after_seconds": 2
}