curl --request POST \
  --url https://api.comstruct.com/v1/purchase-orders/sap \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
[
  {
    "number": "PO-2024-001",
    "title": "Concrete Materials Order",
    "creditor_number": "SUPPLIER-123456",
    "payment_term": "30T",
    "alternative_number": "ALT-PO-001",
    "items": [
      {
        "number": "001",
        "title": "Concrete C25/30",
        "quantity": 50,
        "cost_bearer_number": "PROJECT-KTR-789",
        "unit": "m3",
        "account_number": "ACC-4000",
        "tax_code": "VAT19"
      }
    ]
  }
]
'

{
  "message": "Purchase Order data received successfully"
}