Validating a Challenge Using Digital Payment (Google Pay) {#pa2-use-validate-google-intro}
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Running the Validation service compares the customer's response to the challenge from the issuing bank to validate the customer identity.

Card-Specific Requirements {#pa2-use-validate-google-intro_card-specific-SO}
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Some payment cards require additional information to be collected during a transaction.

[payerAuthEnrollService_defaultCard](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/so/api-fields/payer-auth-enroll-service-default-card.md "")
:
This field is recommended for Discover ProtectBuy.

[payerAuthEnrollService_MCC](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/so/api-fields/payer-auth-enroll-service-mcc.md "")
:
This field is required when the card type is Cartes Bancaires.

[payerAuthEnrollService_merchantName](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/so/api-fields/payer-auth-enroll-service-merchant-name.md "")
:
This field is required for Visa Secure travel.

[payerAuthEnrollService_productCode](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/so/api-fields/payer-auth-enroll-service-product-code.md "")
:
This field is required for American Express SafeKey (US) when the product code is `AIR` for an airline purchase).

[shipTo_street1](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/so/api-fields/ship-to-street1.md "")
:
This field is required only for American Express SafeKey (US).
{#pa2-use-validate-google-intro_dl_d1v_}

[shipTo_street2](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/so/api-fields/ship-to-street2.md "")
:
This field is required only for American Express SafeKey (US)

Country-Specific Requirements {#pa2-use-validate-google-intro_country-specific-SO}
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These fields are required for transactions in specific countries.

[billTo_city](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/so/api-fields/bill-to-postal-code.md "")
:
TThis field is required for transactions in the US and Canada.

[billTo_postalCode](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/so/api-fields/bill-to-postal-code.md "")
:
This field is required when the billTo_country field value is `US` or `CA`.

[billTo_state](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/so/api-fields/bill-to-state.md "")
:
This field is required for transactions in the US and Canada.

[payerAuthEnrollService_merchantScore](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/so/api-fields/payer-auth-enroll-service-merchant-score.md "")
:
This field is required for transactions processed in France.
{#pa2-use-validate-google-intro_dl_z_rxb}

Endpoint
--------

Set the `payerAuthValidateService_run` fields to `true`.  
Send the request to:  
**Production:** `https://ics2ws.ic3.com/commerce/1.x/transactionProcessor`  
**Test:** `https://ics2wstest.ic3.com/commerce/1.x/transactionProcessor`