3DS ReferenceProtocol & field guide

EMV 3-D Secure · Core specification 2.3.1.1

Interaction CounterinteractionCounter

Interaction Counter in Results Request (RReq).

Source edition: Core 2.3.1.1 · Type: String · Length: 2 characters · Minimum length: 2 · Maximum length: 2

Baseline in RReq Conditional

Varies by context. Requirement or applicability varies by channel or message category. Select a specific context to resolve it. Usage and conditions ↓

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Usage in RReq

Indicates the number of authentication cycles (excluding Decoupled Authentication) attempted by the Cardholder. Value to be tracked by the ACS.

Conditional inclusion — source text

Required unless ACS Decoupled Confirmation Indicator = Y.

Related condition fields: acsDecConInd.

Format and scope

Type: String · Length: 2 characters · Minimum length: 2 · Maximum length: 2

Source components: ACS. Channels: 01-APP, 02-BRW. Categories: 01-PA, 02-NPA.

EMV_3DS_CoreSpec_v2.3.1.1_20230530.pdf, Table A.1, PDF pages 256

Transaction context

This reference covers the published source edition. Use the explorer to inspect this field and any applicable transaction conditions. Scheme programme requirements are not inferred from the protocol edition.

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Sources and related references

EMV_3DS_CoreSpec_v2.3.1.1_20230530.pdf, Table A.1, PDF pages 256

Source review status: carried-forward. Carried-forward material has not acquired a new verification claim.

Document fingerprint (SHA-256): 6fdf0aba3fc1a765f96b74dad4069d1e189969f38f0023647021687daf589d6b