DynamicQR Decline Reasons

When a transaction is declined, the Cortina API returns a specific decline reason code that explains why the payment was not approved. These codes are essential for integrators and merchants to understand the cause of the decline and take appropriate action. The third-party integrator is responsible for returning the response, including the corresponding decline code from the list, based on the payment method used. The following decline reason codes are used when processing DynamicQR transactions:

Code	Description
1	Insufficient funds
2	Transaction ID unknown
3	Cardholder exceeded daily/weekly/monthly transaction count limit
4	The cardholder exceeded the transaction amount limit
5	Suspected fraud
6	General system failure
7	Invalid amount
8	Request cannot be parsed (format error)
9	Transaction not allowed to cardholder
20	No VPN or MQTT enabled
30	The machine is not responding
40	For Nayax internal use only
50	Unknown machine Id
990	CertificateFileName not found
991	Failed to decipher message body
992	Timeout exception
993	Pending (relevant only for the Inquiry command)
994	Card Brand not supported
996	Transaction ID Unknown / Duplicate Transaction ID (Start Session Error)
997	Missing mandatory parameters
998	Validation/request cannot be parsed
999	General exception
1010	Public Key Certificate not found
1011	Method not Implemented

Cortina Guides

API Reference