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Required Fields for Authorizing a Mastercard Payment on Paze with `Cybersource` Decryption {#paze-txns-auth-cybs-mc-reqfields}
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As a best practice, include these REST API fields in your request for an authorization with the `Cybersource` decryption implementation of Paze for Mastercard.

> IMPORTANT
> Depending on your processor, your geographic location, and whether the relaxed address verification system (RAVS) is enabled for your account, some of these fields might not be required. It is your responsibility to determine whether an API field can be omitted from the transaction you are requesting.  
> For information about the relaxed requirements for address data and expiration dates in payment transactions, see the [Payments Developer Guide](https://developer.cybersource.com/docs/cybs/en-us/payments/developer/ctv/rest/payments/payments-intro.md "").

[clientReferenceInformation.code](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/client-ref-info-aa/client-ref-info-code.md "")
:

[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 "")
:

[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 "")
:

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

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

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

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

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

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

[paymentInformation.fluidData.value](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/payment-info-aa/payment-info-fluid-data-value.md "")
:
Set this field to the Base64-encoded value returned in the Paze payload in the completeResponse property of the complete payment response object.

[paymentInformation.tokenizedCard.transactionType](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/payment-info-aa/payment-info-tokenized-card-txn-type.md "")
:
Set this field to `1`.

[paymentInformation.tokenizedCard.type](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/payment-info-aa/payment-info-tokenized-card-type-a.md "")
:
Set this field to `002` for Mastercard.

[processingInformation.paymentSolution](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/processing-info-aa/processing-info-payment-solution.md "")
:
Set this field to `029` to identify Paze as the digital payment solution.  
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