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# refund_request

The refund_request contains the following data elements:

Field Type Required Description
merchant_account char The merchant account processing this transaction. Transactions can be performed with any of the merchant accounts that were returned when registering the POS.
reference char A reference for this request. Allows the merchant to identify the transaction.

There are two ways to refund an order. Either with the original PSP reference, or with the tender reference and unique terminal ID for the terminal that processed the order.

To refund with the PSP reference, provide the following data element:

Field Type Required Description
psp_reference char Original Adyen order reference, used to reference an earlier transaction. It must refer to the pspReference of an earlier existing transaction.

To refund with the tender reference and unique terminal ID, provide the following data elements:

Field Type Required Description
tender_reference char A reference to the tender provided by the PED.
unique_terminal_id char The unique identifier for the PED.
Field Type Required Description
modification_amount_currency Long The three-character ISO currency code. The currency must match the currency used in the original payment request. For partial refunds, this is the currency of the partial amount to be refunded.
modification_amount_value Amount A container for the amount that needs to be refunded. For partial refunds, this is the partial amount to be refunded.