POS Systems Error Code
Systems & Devices
POS Systems
15 | No such issuer
Industry
Systems & Devices
Canonical
/systems/pos-systems/error-codes/15/
Last Updated
Feb 27, 2026
Summary
The card issuer could not be identified or the routing information was not recognized.
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What This Code Means
Response code 15 indicates the authorization request could not be routed to a valid issuer. This can happen when the issuer identification data is not recognized, when the card number is invalid, or when the acquiring/processor routing tables do not recognize the issuer.
Where Users Usually See This Code
- New payment methods or unusual card ranges
- Mis-keyed manual entry transactions
- Routing or configuration issues at the processor
Why This Code Appears
- Incorrect card number or entry error
- Issuer routing not supported by the processor/acquirer
- Configuration issue with card network support
What Typically Happens Next
- The transaction is declined
- Merchant may need to use a different acquirer or enable additional card networks
What This Code Is Not
- It is not an insufficient funds decline
- It is not a POS device malfunction code
Troubleshooting Checklist
- □ Re-check card entry method and number
- □ Try chip/tap instead of manual entry where possible
- □ Confirm the merchant account supports the card network/type
- □ Escalate to processor support if the card is valid but routing fails
Notes And Edge Cases
Some processors return similar codes for unsupported card products; consult processor-specific mappings.
Related Codes
8 links
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