Allowed and reserved values
| Value | Meaning | Introduction tag |
|---|---|---|
Y | Authentication Verification Successful. | Not tagged |
N | Not Authenticated / Account Not Verified; Transaction denied. | Not tagged |
U | Authentication / Account Verification Could Not Be Performed; Technical or other problem, as indicated in ARes or RReq. | Not tagged |
A | Attempts Processing Performed; Not Authenticated/ Verified, but a proof of attempted authentication/verification is provided. | Not tagged |
C | Challenge Required; Additional authentication is required using the CReq/CRes. | Not tagged |
D | Challenge Required; Decoupled Authentication confirmed. | 2.2.0 |
R | Authentication / Account Verification Rejected; Issuer is rejecting authentication/verification and request that authorisation not be attempted. | Not tagged |
I | Informational Only; 3DS Requestor challenge preference acknowledged. | 2.3.1.1 |
S | Challenge using SPC | Not tagged |
Introduction tags are shown where recorded. An absent tag does not establish when a value was introduced.
Message inclusion
Baseline inclusion. Effective requirements depend on transaction context. Check the field’s conditions and FAQ qualifications; select channel and category in the explorer.
| Message | Baseline inclusion |
|---|---|
| ARes | Payment · 01-PARequiredNon-payment · 02-NPAConditional |
| RReq | Payment · 01-PARequiredNon-payment · 02-NPAConditional |
| CRes | Payment · 01-PAConditionalNon-payment · 02-NPAConditional |
Conditional inclusion — source text
For 01-PA, see Table A.17 for Transaction Status presence conditions. For 02-NPA, requirements for the presence and values of Transaction Status are DS-specific.
Format and scope
Type: String · Length: 1 character · Minimum length: 1 · Maximum length: 1
- Source components
- ACS, DS
- Device channels
- 01-APP, 02-BRW, 03-3RI
- Message categories
- 01-PA, 02-NPA
Reference notes
- In CRes, only present in Final CRes with values Y, N, or D only. If received in non-Final CRes, ignore per Req 209. RReq contains full value range for detailed status. — FAQ 15 (EMVCo FAQ)
- Value 'I' is only valid when threeDSRequestorChallengeInd = 05, 06, or 07. — FAQ 23 (EMVCo FAQ)
- Value 'C' is not allowed for 03-3RI channel—Cardholder not present. Use 'D' (Decoupled) if challenge needed. — FAQ 29 (EMVCo FAQ)
Version history
No field introduction version is tagged in the dataset. Introduction tags are curated metadata, not a full history of changes. Compare versions and understand coverage.
Source and review status
EMV_3DS_CoreSpec_v2.3.1.1_20230530.pdf, Table A.1, PDF pages 288, 289
Source review status: carried-forward. Carried-forward material has not acquired a new verification claim.
Source document fingerprint
EMV_3DS_CoreSpec_v2.3.1.1_20230530.pdf
6fdf0aba3fc1a765f96b74dad4069d1e189969f38f0023647021687daf589d6bOfficial EMVCo specifications · Methodology and coverage limits