curl --request POST \
  --url https://app.ezzydoc.com/EzzyService.svc/Rest/appendPurchaseOrders \
  --header 'Content-Type: application/json' \
  --data '
[
  {
    "Description": "<string>",
    "ItemCode": "<string>",
    "Line": 123,
    "LineTotal": 123,
    "PODate": "2023-11-07T05:31:56Z",
    "PONumber": "<string>",
    "Quantity": 123,
    "Taxed": 123,
    "UnitPrice": 123,
    "Vendor": "<string>"
  }
]
'

{
  "invoice_id": 123,
  "message": "<string>",
  "status": 0
}