Scheme code system · American Express
Secondary source912
Issuer not available
The issuer, authorization system, switch, or route is temporarily unavailable.
- Outcome
- Technical
- Code system
- American Express
- Raw format
- Two- or three-character raw response code
Operational context
No universal retry instruction encoded
American Express wording mapped to the SchemeLens “Issuer or network unavailable” concept.
Use the current scheme, provider, transaction, and advice-code rules; the raw response value alone may be insufficient for a retry decision.
Explicit mapping
SchemeLens concepts
These links are editorial mappings, not replacements for the raw source value. The relation shows how closely the wording aligns.
| Concept | Relation | Mapping note |
|---|---|---|
| Issuer or network unavailable | Direct semantic match | American Express wording mapped to the SchemeLens “Issuer or network unavailable” concept. |
Namespace check
The same raw value exists elsewhere
- DECTA Gate 912Decline reason message: card issuer unavailable
Provenance
Sources used for this record
- Worldpay: Raw response codesOfficial for Worldpay raw-response behaviour; secondary evidence for the underlying scheme definition.Live provider reference, verified 27 July 2026
SchemeLens keeps source wording, normalized concepts, and operational guidance separate so later evidence can be added without rewriting the raw record.