Scheme code system · Visa
Official12
Invalid transaction
The requested transaction or function is invalid or unsupported in the cited context.
- Outcome
- Declined
- Code system
- Visa
- Raw format
- Two-character numeric or alphanumeric action code
Operational context
Do not reattempt
Visa Category 1: do not resubmit an authorization or account verification for the same payment credential.
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 |
|---|---|---|
| Invalid transaction | Direct semantic match | Visa wording mapped to the SchemeLens “Invalid transaction” concept. |
Namespace check
The same raw value exists elsewhere
- Mastercard 12Invalid transaction
- Discover 12Invalid transaction
- UnionPay 12Invalid related transaction
- EBANX 12Transaction type is not supported
Provenance
Sources used for this record
- Visa Developer: Request and Response Codes — Action CodeOfficial source for the published Visa action-code wording.Live web reference, verified 27 July 2026
- Visa: Visa Core Rules and Visa Product and Service RulesOfficial source for decline categories, qualifications, and merchant reattempt limits.April 2026, section 7.3.6.3
SchemeLens keeps source wording, normalized concepts, and operational guidance separate so later evidence can be added without rewriting the raw record.