curl --request POST \
  --url https://openplatform.gateapi.io/rate/commission_rule/upgrade \
  --header 'Content-Type: application/json' \
  --header 'X-GatePay-Certificate-ClientId: <x-gatepay-certificate-clientid>' \
  --header 'X-GatePay-MerchantId: <x-gatepay-merchantid>' \
  --header 'X-GatePay-Nonce: <x-gatepay-nonce>' \
  --header 'X-GatePay-Signature: <x-gatepay-signature>' \
  --header 'X-GatePay-Timestamp: <x-gatepay-timestamp>' \
  --data '
{
  "r_markup": 0.002,
  "effective_date": "2026-05-01 00:00:00"
}
'

{
  "status": "SUCCESS",
  "code": "000000",
  "errorMessage": "",
  "data": {
    "config_id": "cfg_202605010001",
    "previous_config_id": "cfg_existing_xxx",
    "version_no": 2,
    "sub_merchant_id": "123456789",
    "r_markup": 0.002,
    "f_markup": 1,
    "status": "PENDING_EFFECTIVE",
    "effective_date": "2026-05-01 00:00:00",
    "due_date": null,
    "created_at": "2026-04-17T09:00:00Z",
    "updated_at": "2026-04-17T09:00:00Z"
  }
}