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Required Fields for Mass Transit Reversals {#mt-reversal-fields-matrix}
=======================================================================

This table provides information about the fields required for mass transit reversals.

| REST API Field                                                                                                                                                                                                                        |                                             Authorization Reversal                                              |                                                Timeout Reversal                                                 | Information/Value                                                                                                                                                                                |
|:--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:---------------------------------------------------------------------------------------------------------------:|:---------------------------------------------------------------------------------------------------------------:|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| [clientReferenceInformation. comments](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/client-ref-info-aa/client-ref-info-comments.md "")                                                  | ![](/content/dam/documentation/cybs/en-us/common/images/circlecheck-filled.svg/jcr:content/renditions/original) | ![](/content/dam/documentation/cybs/en-us/common/images/circlecheck-filled.svg/jcr:content/renditions/original) | For this value, see [Transaction Types](/content/cybsdeveloper2021/amer/en/docs/cybs/en-us/urban-mobility/developer/ctv/rest/mass-transit/um-processing-emv-vpc/um-processing-trxn-types.md ""). |
| [clientReferenceInformation. partner. thirdPartyCertificationNumber](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/client-ref-info-aa/client-ref-info-partner-third-party-certnum.md "") | ![](/content/dam/documentation/cybs/en-us/common/images/circlecheck-filled.svg/jcr:content/renditions/original) | ![](/content/dam/documentation/cybs/en-us/common/images/circlecheck-filled.svg/jcr:content/renditions/original) | `Cybersource` provides the value for this field.                                                                                                                                                 |
| [clientReferenceInformation. transactionId](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/client-ref-info-aa/client-ref-info-transaction-id.md "")                                       | ![](/content/dam/documentation/cybs/en-us/common/images/circlecheck-filled.svg/jcr:content/renditions/original) |                                                       ---                                                       | ---                                                                                                                                                                                              |
| [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 "")                                         | ![](/content/dam/documentation/cybs/en-us/common/images/circlecheck-filled.svg/jcr:content/renditions/original) |                                                       ---                                                       | ---                                                                                                                                                                                              |
| [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 "")                                 | ![](/content/dam/documentation/cybs/en-us/common/images/circlecheck-filled.svg/jcr:content/renditions/original) | ![](/content/dam/documentation/cybs/en-us/common/images/circlecheck-filled.svg/jcr:content/renditions/original) | ---                                                                                                                                                                                              |
| [reversalInformation. reason](https://developer.cybersource.com/docs/cybs/en-us/api-fields/reference/all/rest/api-fields/reversal-info-aa/reversal-info-reason.md "")                                                                 |                                                       ---                                                       | ![](/content/dam/documentation/cybs/en-us/common/images/circlecheck-filled.svg/jcr:content/renditions/original) | ---                                                                                                                                                                                              |
[Reversal Fields]

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