{
  "invoice": [
    {
      "issuer": {
        "vatNumber": "123456789",
        "country": "GR",
        "branch": 0
      },
      "counterpart": {
        "vatNumber": "987654324",
        "country": "GR",
        "branch": 0,
        "address": {
          "street": "Οδός Πελάτη",
          "number": "10",
          "postalCode": "15772",
          "city": "Ζωγράφου"
        }
      },
      "invoiceHeader": {
        "series": "A",
        "aa": "1003",
        "issueDate": "2026-09-24",
        "invoiceType": "3.1",
        "currency": "EUR",
        "exchangeRate": 1.19552,
        "dispatchDate": "2026-09-24",
        "dispatchTime": "10:00:00",
        "vehicleNumber": "ABC-1234",
        "movePurpose": 1,
        "movePurposeLabel": "Πώληση"
      },
      "paymentMethods": [
        {
          "type": 5,
          "amount": 100
        }
      ],
      "invoiceDetails": [
        {
          "lineNumber": 1,
          "lineCode": "655-000023",
          "quantity": 1,
          "measurementUnitLabel": "ΤΜΧ",
          "lineUnitPrice": 120,
          "totalNetPriceBeforeDiscount": 120,
          "totalDiscountValue": 20,
          "netValue": 100,
          "vatCategory": 8,
          "vatCategoryPercent": 0,
          "vatAmount": 0,
          "lineDescription": "Αντικατάσταση Λέβητα",
          "expensesClassification": [
            {
              "classificationType": "E3_102_002",
              "classificationCategory": "category2_1",
              "amount": 100
            }
          ]
        }
      ],
      "invoiceSummary": {
        "totalNetValue": 100,
        "totalVatAmount": 0,
        "totalWithheldAmount": 0,
        "totalFeesAmount": 0,
        "totalStampDutyAmount": 0,
        "totalOtherTaxesAmount": 0,
        "totalDeductionsAmount": 0,
        "totalGrossValue": 100,
        "expensesClassification": [
          {
            "classificationType": "E3_102_002",
            "classificationCategory": "category2_1",
            "amount": 100
          }
        ]
      },
      "providerAdditionalInvoiceDetails": {
        "issuer": {
          "name": "TEST ISSUER ΙΚΕ",
          "profession": "Εμπόριο ειδών θέρμανσης",
          "taxoffice": "Α' Αθηνών",
          "addressStreet": "Οδός Δοκιμής",
          "addressNumber": "1",
          "addressPostalCode": "10431",
          "addressCity": "Αθήνα",
          "addressCountry": "Ελλάδα",
          "phone": "2100000000",
          "email": "info@example.com",
          "webSite": "www.example.com",
          "registryNumber": "ΓΕΜΗ: 000000000000",
          "emtyLine2": "IBAN: GR00 0000 0000 0000 0000 0000 000"
        },
        "counterpart": {
          "code": "C-0001",
          "name": "TEST CLIENT ΑΕ",
          "profession": "Χονδρικό εμπόριο",
          "taxoffice": "Ζωγράφου",
          "addressStreet": "Οδός Πελάτη",
          "addressNumber": "10",
          "addressPostalCode": "15772",
          "addressCity": "Ζωγράφου",
          "addressCountry": "Ελλάδα",
          "phone": "2100000001",
          "email": "client@example.com"
        },
        "additionalDetails": {
          "documentLabel": "Τίτλος Κτήσης",
          "documentLanguageCode": "EL",
          "documentSizeCode": 0,
          "documentComments": "Εξόφληση εντός 30 ημερών.",
          "paymentMethodInvoiceLabel": "Επί πιστώσει"
        }
      }
    }
  ]
}