/BillPayments/pay response -Client id missing-

Request

POST https://apis.nbg.gr/public/sandbox/billpayments/v2/BillPayments/pay
content-type: application/json
accept: application/json
sandbox_id: 5100773314658304
application_id: 3fc6ffe9-5dac-419d-8e6b-5b4012f009bf
user_id: e6da8f9c-ee8b-488c-9179-0a566e9d8aed
username: User1
provider_id: NBG.gr
provider: NBG



Response

401 Unauthorized
Content-Type: application/json
{
    "httpCode": "401",
    "httpMessage": "Unauthorized",
    "moreInformation": "Client id missing."
}