curl --request POST \
  --url https://sandbox.hurdlr.com/rest/v5/invoicing/cancelInvoices \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: */*' \
  --data '
{
  "invoiceIds": [
    123
  ]
}
'

[
  {
    "emailRetVal": {
      "status": "SUCCESS",
      "error": "<string>",
      "messageId": "<string>"
    },
    "invoiceId": "<string>",
    "success": true,
    "errorDescription": "<string>",
    "errors": {
      "fieldErrors": {},
      "globalErrors": [
        {
          "type": "DUPLICATE",
          "errorMessage": "<string>"
        }
      ]
    },
    "refundStatus": "PENDING"
  }
]