Country-Specific Required Fields for Account Verification with Zero Amount Authorization {#payments-processing-basic-zero-auth-required-country}
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Use these country-specific required fields to process a zero amount authorization.

Argentina
---------

merchantInformation.taxId
:
Required for Mastercard transactions.

merchantInformation.transactionLocalDateTime
:
Required in Argentina when the time zone is not included in your account. Otherwise, this field is optional.

Brazil
------

paymentInformation.card.sourceAccountType
:
Required for combo card transactions.

paymentInformation.card.sourceAccountTypeDetails
:
Required for combo card line-of-credit and prepaid-card transactions.

Saudi Arabia
------------

processingInformation.authorizationOptions.transactionMode
:

Taiwan
------

paymentInformation.card.hashedNumber
: