Required Fields for Checking Enrollment in Payer Authentication {#id_t24_l5m_rfc}
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These fields are the minimum fields required for verifying that a customer is enrolled in a payer authentation program. Under certain circumstances, a field that normally is optional might be required. The circumstance that makes an optional field required is noted.

Required Fields
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[buyerInformation.mobilePhone](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/buyer-info-aa/buyer-info-mobile-phone.md "")
:
This field is required (when available) if buyerInformation.workPhone is not used, unless market or regional mandate restricts sending this information.

[buyerInformation.workPhone](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/buyer-info-aa/buyer-info-work-phone.md "")
:
This field is required (when available) if buyerInformation.mobilePhone is not used, unless market or regional mandate restricts sending this information.

[consumerAuthenticationInformation. deviceChannel](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/cons-auth-info-aa/cons-auth-info-device-channel.md "")
:
This field is required for SDK integration. When you use the SDK integration, this field is dynamically set to `SDK`. When you use the JavaScript code, this field is dynamically set to `Browser`. For merchant-initiated or 3RI transactions, you must set the field to `3RI`. When you use this field in addition to JavaScript code, you must set the field to `Browser`.

[consumerAuthenticationInformation. messageCategory](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/cons-auth-info-aa/cons-auth-info-message-category.md "")
:
For non-payment authentication, set to a value of `02`.

[consumerAuthenticationInformation.referenceId](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/cons-auth-info-aa/cons-auth-info-reference-id.md "")
:

[consumerAuthenticationInformation.returnUrl](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/cons-auth-info-aa/cons-auth-info-return-url.md "")
:

[consumerAuthenticationInformation. overrideCountryCode](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/cons-auth-info-aa/cons-auth-info-override-country-code.md "")
:
For Meeza transactions, this value must be set to `EG` when Egypt is not set as the country in the merchant configuration during merchant boarding.

[deviceInformation.httpAcceptBrowserValue](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/device-info-aa/device-info-http-accept-browser-value.md "")
:

[deviceInformation.httpAcceptContent](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/device-info-aa/device-info-http-accept-content.md "")
:

[deviceInformation.httpBrowserColorDepth](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/device-info-aa/device-info-http-browser-color-depth.md "")
:

[deviceInformation.httpBrowserJavaEnabled](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/device-info-aa/device-info-http-browser-java-enabled.md "")
:

[deviceInformation.httpBrowserJavaScriptEnabled](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/device-info-aa/device-info-http-browser-java-script-enabled.md "")
:

[deviceInformation.httpBrowserLanguage](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/device-info-aa/device-info-http-browser-language.md "")
:

[deviceInformation.httpBrowserScreenHeight](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/device-info-aa/device-info-http-browser-screen-height.md "")
:

[deviceInformation.httpBrowserScreenWidth](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/device-info-aa/device-info-http-browser-screen-width.md "")
:

[deviceInformation.httpBrowserTimeDifference](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/device-info-aa/device-info-http-browser-time-diff.md "")
:

[deviceInformation.ipAddress](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/device-info-aa/device-info-ip-address.md "")
:

[deviceInformation.userAgentBrowserValue](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/device-info-aa/device-info-http-user-agent-browser-value.md "")
:
When the customer's browser provides this value, you must include that value in your request.

[merchantInformation.merchantDescriptor. country](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/merch-info-aa/merch-info-merchant-descriptor-country-a.md "")
:
For Meeza transactions, this value must be set to `EG` when Egypt is not set as the country in the merchant configuration during merchant boarding.

[orderInformation.amountDetails.currency](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/order-info-aa/order-info-amount-details-currency.md "")
:

[orderInformation.amountDetails.totalAmount](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/order-info-aa/order-info-amount-details-total-amount.md "")
:
This field is required when the orderInformation.lineItems.unitPrice field is not used.

[orderInformation.billTo.address1](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/order-info-aa/order-info-bill-to-address1.md "")
:

[orderInformation.billTo.administrativeArea](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/order-info-aa/order-info-bill-to-admin-area.md "")
:
This field is required for transactions in the US and Canada.

[paymentInformation.card.expirationYear](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/payment-info-aa/payment-info-card-exp-year.md "")
:
This field is required when the paymentInformation.card.number field is included.

[paymentInformation.card.expirationMonth](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/payment-info-aa/payment-info-card-exp-mo.md "")
:
This field is required when the paymentInformation.card.number field is included.

[paymentInformation.card.type](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/payment-info-aa/payment-info-card-type-a.md "")
:

[paymentInformation.card.number](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/payment-info-aa/payment-info-card-number.md "")
:

Related Information
-------------------

* [API field reference guide for the REST API](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/rest-api-fields-intro.md "")

