3DS ReferenceProtocol & field guide

EMV 3-D Secure · Core specification 2.3.1.1

ACS URLacsURL

ACS URL in Authentication Response (ARes).

Source edition: Core 2.3.1.1 · Type: String · Length: Variable, maximum 2048 · Maximum length: 2048

Baseline in ARes 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 ARes

Fully Qualified URL of the ACS to be used for the challenge. 01-APP—3DS SDK will send the Challenge Request to this URL 02-BRW—3DS Requestor will post the CReq to this URL via the challenge iframe. For App-based, this data element is contained within the ACS Signed Content JWS Object. For Browser-based, this data element is present as its own object.

Conditional inclusion — source text

• For 01- APP, see ACS Signed Content. • For 02- BRW, required if Transaction Status = C.

Related condition fields: transStatus.

Format and scope

Type: String · Length: Variable, maximum 2048 · Maximum length: 2048

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 207

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 207

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

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