All Cybersource codes
CYBERSOURCE · REASON CODE
Cybersource254
Stand-alone credits are not allowed; submit a follow-on credit with a request ID instead.
Cybersource saysIntegration issue
254Stand-alone credits are not allowed; submit a follow-on credit with a request ID instead.
What it means
Not supported
The card, method or account does not support this feature or type of transaction.
What to do
Check that the feature is enabled and supported for this card type and provider.
Don't retry as-isWho can fix it: You, the merchant
Yuno response codeUNSUPPORTED_OPERATION
Reference only. Codes and descriptions come from each provider's public documentation. The Yuno response code is a reference mapping and does not guarantee how a specific transaction is processed.