3DS ReferenceProtocol & field guide

EMV 3-D Secure · Core specification 2.3.1.1

Purchase Currency ExponentpurchaseExponent

Purchase Currency Exponent in Authentication Request (AReq).

Source edition: Core 2.3.1.1 · Type: String · Length: 1 character · Minimum length: 1 · Maximum length: 1

Baseline in AReq Payment · 01-PARequiredNon-payment · 02-NPAConditional

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 AReq

Minor units of currency as specified in the ISO 4217 currency exponent. Example: • USD = 2 • JPY = 0

Conditional inclusion — source text

• Required for 02-NPA if 3DS Requestor Authenticati on Indicator = 02, 03, 07, 08, 09 • Required for 02-NPA if 3RI Indicator = 01, 02, 06, 07, 08, 09, 11, 15

Related condition fields: threeDSRequestorAuthenticationInd, threeRIInd.

Format and scope

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

Source components: 3DS Server. Channels: 01-APP, 02-BRW, 03-3RI. Categories: 01-PA, 02-NPA.

EMV_3DS_CoreSpec_v2.3.1.1_20230530.pdf, Table A.1, PDF pages 272

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 272

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

Document fingerprint (SHA-256): 6fdf0aba3fc1a765f96b74dad4069d1e189969f38f0023647021687daf589d6b