{
  "invoice": [
    {
      "issuer": {
        "vatNumber": "123456789",
        "country": "GR",
        "branch": 0
      },
      "invoiceHeader": {
        "series": "A",
        "aa": "1020",
        "issueDate": "2026-09-24",
        "invoiceType": "11.1",
        "currency": "EUR",
        "multipleConnectedMarks": [
          400001930000011,
          400001930000012
        ],
        "specialInvoiceCategory": 12
      },
      "paymentMethods": [
        {
          "type": 3,
          "amount": 18.6
        }
      ],
      "invoiceDetails": [
        {
          "lineNumber": 1,
          "lineCode": "#0501",
          "quantity": 1,
          "measurementUnit": 1,
          "measurementUnitLabel": "ΤΜΧ",
          "lineUnitPrice": 5,
          "totalNetPriceBeforeDiscount": 5,
          "totalDiscountValue": 0,
          "netValue": 5,
          "vatCategory": 1,
          "vatCategoryPercent": 24,
          "vatAmount": 1.2,
          "lineDescription": "ΤΖΑΤΖΙΚΙ",
          "incomeClassification": [
            {
              "classificationType": "E3_561_003",
              "classificationCategory": "category1_3",
              "amount": 5
            }
          ]
        },
        {
          "lineNumber": 2,
          "lineCode": "#0605",
          "quantity": 1,
          "measurementUnit": 1,
          "measurementUnitLabel": "ΤΜΧ",
          "lineUnitPrice": 10,
          "totalNetPriceBeforeDiscount": 10,
          "totalDiscountValue": 0,
          "netValue": 10,
          "vatCategory": 1,
          "vatCategoryPercent": 24,
          "vatAmount": 2.4,
          "lineDescription": "ΦΕΤΑ",
          "incomeClassification": [
            {
              "classificationType": "E3_561_003",
              "classificationCategory": "category1_3",
              "amount": 10
            }
          ]
        }
      ],
      "invoiceSummary": {
        "totalNetValue": 15,
        "totalVatAmount": 3.6,
        "totalWithheldAmount": 0,
        "totalFeesAmount": 0,
        "totalStampDutyAmount": 0,
        "totalOtherTaxesAmount": 0,
        "totalDeductionsAmount": 0,
        "totalGrossValue": 18.6,
        "incomeClassification": [
          {
            "classificationType": "E3_561_003",
            "classificationCategory": "category1_3",
            "amount": 15
          }
        ]
      },
      "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"
        },
        "additionalDetails": {
          "documentLabel": "Απόδειξη Λιανικής Πώλησης",
          "documentLanguageCode": "EL",
          "documentSizeCode": 7,
          "paymentMethodInvoiceLabel": "Μετρητά"
        }
      }
    }
  ]
}