Required Fields for DCC Authorization {#dcc-merchant-auth-api-req-fields}
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In addition to the normal fields required for a regular authorization, these fields are required when DCC has been offered and the cardholder has chosen to pay in their billing currency.

[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. currencyConversion.indicator
:
Set this field to `1` when cardholders opt to use DCC.

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

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

[orderInformation.amountDetails. foreignAmount](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/order-info-aa/order-info-amount-details-foreign-amount.md "")
:
Required for FDI Global transactions.

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

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

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

[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 "")
: