Additional notification for BLIK Level 0

For BLIK Level 0 implementation, if a transaction is declined, additional notification containing the reason for the rejection is sent. Other notifications are sent as standard.

The notification is sent using the standard notification service protocol and parameters — the same as for regular payments (Notification Service).

The args parameter is a comma-separated list where the first element represents the transaction ID and the second represents the decline status code. For a complete list of status codes, see the Status Codes section in the documentation.

Example notification

https://shop_url.com/?cmd=blikDeclinedEvent&args=hc000pc,USER_DECLINED&sign=c8143d45bf2f76fd38a6a9d77feb1a79

Signature

sign = md5(cmd + args + secretKey)