3DS ReferenceProtocol & field guide

EMV 3-D Secure · Core specification 2.3.1.1

OOB Continuation LabeloobContinueLabel

OOB Continuation Label in Challenge Response (CRes).

Source edition: Core 2.3.1.1 · Type: String · Length: Variable, maximum 45 · Maximum length: 45

Baseline in CRes 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 CRes

Label to be used in the UI for the button that the Cardholder selects when they have completed the OOB authentication.

Conditional inclusion — source text

Required for ACS UI Type = 04 if the OOB App Label is not present.

Related condition fields: acsUiType.

Format and scope

Type: String · Length: Variable, maximum 45 · Maximum length: 45

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

EMV_3DS_CoreSpec_v2.3.1.1_20230530.pdf, Table A.1, PDF pages 265

Scoped FAQ qualifications

  • FAQ 26 — 2.2.0

    App-based CRes, selected native UI template

    Table A.1 optionality does not override the UI elements required by Table A.18. Challenge Information Label must be present for the templates discussed; it may contain a single space.

    EMVCo_3DS_Specification_FAQs_8-April-2026.pdf, page 9

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 265

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

Document fingerprint (SHA-256): 6fdf0aba3fc1a765f96b74dad4069d1e189969f38f0023647021687daf589d6b