3DS ReferenceProtocol & field guide

EMV 3-D Secure · Core specification 2.3.1.1

Challenge Information Text IndicatorchallengeInfoTextIndicator

Indicates when the Issuer/ACS would like a warning icon or similar visual indicator to draw attention to the “Challenge Information Text” that is being displayed.

Read in message: CRes

Explore this field with transaction context

Allowed and reserved values

ValueMeaningIntroduction tag
YDisplay indicatorNot tagged
NDo not display indicator Note: If the field is populated, this information is displayed to the Cardholder.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.

MessageBaseline inclusion
CResConditional

Conditional inclusion — source text

See Table A.20 for presence conditions.

Format and scope

Type: String · Length: 1 character · Minimum length: 1 · Maximum length: 1

Source components
ACS
Device channels
01-APP
Message categories
01-PA, 02-NPA

Version history

Field introduction tag: 2.1.0. 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 239

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

6fdf0aba3fc1a765f96b74dad4069d1e189969f38f0023647021687daf589d6b

Official EMVCo specifications · Methodology and coverage limits