{
  "endpoint": "issueInvoice",
  "description": "Preis unter einem Cent: 3.500.000 x 0,000004 EUR = 14,00 EUR netto. In ganzen Cent waere der Einzelpreis 0 und die Rechnung leer.",
  "request": {
    "idempotencyKey": "ex-micro-1",
    "customerId": "customer_example",
    "taxScheme": "normal",
    "priceMode": "net",
    "serviceStart": "2026-09-14",
    "items": [
      {
        "description": "Strom",
        "quantity": 3500000,
        "unitPriceMicros": 4,
        "vatRate": 20
      }
    ]
  },
  "expected": {
    "ok": true,
    "totals": {
      "netCents": 1400,
      "vatCents": 280,
      "grossCents": 1680
    }
  }
}