Callback in "payment rejected" case (iframe and host-2-host)

If the payment is failed, the missent payment data will be sent to the process_url store server using the POST method:

Field	Description
co_inv_id	unique transaction number;
co_inv_crt	transaction creation date and time;
co_inv_prc	transaction processing date and time;
co_inv_st	payment processing status (“fail”);
co_order_no	transaction number in the merchant system (transferred by the merchant when payment is making);
co_merchant_id	unique merchant number;
co_merchant_uuid	unique merchant ID;
co_error_resolution	payment error description;
co_sign	digital signature with the merchant’s key (for more details read the “Digital signature in callback” section).

In response to the package received, the merchant’s server must respond with two English letters OK.

Example:

application/json

{
  "co_inv_id": "1111111",
  "co_inv_crt": "2019-02-19 19:12:04",
  "co_inv_prc": "2019-02-19 19:12:11",
  "co_inv_st": " fail",
  "co_order_no": "0001",
  "co_merchant_id": "1",
  "co_merchant_uuid": "M1VJDHSI6DYXS",
  "co_error_resolution": "Not enough money on your bank card",
  "co_sign": "pQQgUBfjz+XxRSpwo5srmw=="
}