What does 'Unable to process transaction' mean?
This means that the customer has either used multiple cards to attempt the transaction in a short period of time, or their transaction attempts have failed multiple times in a short period of time and their card has been hotlisted by our fraud prevention system.
This error will appear as 'Denied by Fraud System' on your dashboard.
What can I do about it?
The hotlist typically clears after 24 hours so the customer can retry the transaction from 24 hours after the last transaction attempt.
If the error persists after waiting for 24 hours to retry the transaction, kindly reach out to the Paystack support team for further assistance.