Decline code · Soft decline
Decline code 06: Error
A general error occurred while the issuer processed the authorization, without a more specific code to describe it. The transaction failed for technical or unspecified reasons rather than a deliberate risk decision. It is a catch-all, and it usually says more about systems than about the cardholder.
Should you retry?
Safe to retry after a brief delay, and the retry frequently succeeds because the underlying cause is transient. If two spaced attempts both return 06, stop and investigate the processing path instead of continuing to resubmit.
Why code 06 happens
- A processing fault occurred somewhere between the acquirer, the network, and the issuer while handling the request.
- The authorization message contained something the issuer's system could not handle cleanly but that did not map to a specific format error.
- The issuer's host had a transient problem that was not severe enough to return a system-malfunction code.
- Occasionally a gateway maps an unrecognized issuer response into 06 as a default.
What to do about it
- Retry once after a short wait, since transient processing errors frequently clear on the next attempt.
- If the code persists on one card, test whether other cards succeed to separate a card-specific issue from a pipeline issue.
- Review your gateway logs for the raw network response, because some gateways bucket several distinct failures under a generic error code.
- Escalate to your processor if 06 volume spikes across many cards at once, which suggests an integration or host problem.
Frequently asked questions
- Is decline code 06 a fraud-related decline?
- No. It is a general processing error, not a risk decision. The issuer or an intermediate system failed to complete the authorization for technical or unspecified reasons.
- Should the customer use a different card after an error 06?
- First try the same card again after a moment, because these errors are often transient. If it fails repeatedly, a different card or payment method is a sensible fallback while the merchant investigates.
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