curl --request PATCH \
  --url https://test-api.pasca.co/api/v1/einvoice/update/{IRN} \
  --header 'API-KEY: <api-key>' \
  --header 'API-SECRET: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "payment_status": "REJECTED",
  "reference": "payment_reference_or_note"
}
'

import requests

url = "https://test-api.pasca.co/api/v1/einvoice/update/{IRN}"

payload = {
    "payment_status": "REJECTED",
    "reference": "payment_reference_or_note"
}
headers = {
    "API-KEY": "<api-key>",
    "API-SECRET": "<api-key>",
    "Content-Type": "application/json"
}

response = requests.patch(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'PATCH',
  headers: {
    'API-KEY': '<api-key>',
    'API-SECRET': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({payment_status: 'REJECTED', reference: 'payment_reference_or_note'})
};

fetch('https://test-api.pasca.co/api/v1/einvoice/update/{IRN}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

{
  "status": false,
  "code": 400,
  "message": "Failed to validate invoice",
  "data": null,
  "error": {
    "id": "5c4c008e-8f1e-4034-a96b-8b352c143da5",
    "handler": "invoice_actions",
    "details": "this business does not exist",
    "public_message": "validation failed"
  },
  "timestamp": "2025-12-23T14:54:12.477393Z"
}

{
  "status": false,
  "code": 401,
  "message": "Unauthorized",
  "data": null,
  "error": {
    "details": "invalid or missing API credentials"
  }
}