Refund Transaction - ZEN API documentation

The Merchant's Shop, when initiating a refund Transaction, sends in POST message the mandatory and optional parameters to the ZEN.COM Payment system in request to process the Transaction and then return the Payment status in response. It is possible to process full refund and partial refunds. One refund can be active at a time for specific Transaction.

INFO

Refund process is available when the parent Transaction has accepted status.

The Merchant must have sufficient funds in ZEN.COM account to process refund Transactions.

The refund amount cannot exceed the value of the original purchase Transaction.

Funds received from a purchase Transaction cannot be entirely refunded if total Transaction value have already been returned.

CAUTION

Not all Payment channel supports refunds or partial refunds. Please go to the Payment methods page to find more information where the refund process is available.

To Create the refund Transaction

Create a POST request

CAUTION

Request header with Authorization parameter is obliged for all requests sent to ZEN.COM API. Authorization value is the Terminal API key parameter you can find in your my.zen.com Merchant portal.

Create a POST request as shown in Prepare the communication chapter.

CAUTION

Make sure to use all required parameters and objects listed below.

Required parameters:

Header:

Field	Type	Description
`request-id`	string	A unique identifier generated by requesting Merchant.

Body:

Field	Type	Description
`amount`	String	Amount of the Transaction.
`transactionId`	String	Transaction Id generated during create purchase Transaction process.
`currency`	String	Currency code in ISO 4217 alphabetic code. Currency code should be the same as in purchase Transaction.
`merchantTransactionId`	String	Origin Id of the transaction provided by Merchant.
`source.channel`	String	Default to PTS_ZEN_API

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Example of JSON

{
"comment":"Product failure",
"amount":"123.45",
"transactionId":"43d435a2-1abc-4321-8fd1-432148712345",
"currency":"USD",
"merchantTransactionId":"99beb187-f8a3-99b8-9ef8-b31180358dd3",
"originMerchantTransactionId":"99beb187-f8a3-99b8-9ef8-b31180358dd3",
"source":{
"channel":"PTS_ZEN_API"
}
}

Send the request

Send the POST request to:

test environment: https://api.zen-test.com/v1/transactions/refund

production environment: https://api.zen.com/v1/transactions/refund

Receive the ZEN.COM response

Receive the ZEN.COM response.

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Example of JSON response

{
 "id":"497f6eca-6276-4993-bfeb-53cbbbba6f08",
 "parentTransactionId":"43d435a2-1abc-4321-8fd1-432148712345",
 "merchantTransactionId":"99beb187-f8a3-99b8-9ef8-b31180358dd3",
 "originMerchantTransactionId":"99beb187-f8a3-99b8-9ef8-b31180358dd3",
 "amount":"123.45",
 "currency":"USD",
 "authorization":{
    "amount":"123.45",
    "currency":"USD"
 },
 "createdAt":"2024-12-30T20:48:22.123Z",
 "modifiedAt":"2024-12-30T20:48:22.123Z",
 "type":"TRT_REFUND",
 "status":"ACCEPTED",
 "paymentChannel":"PCL_CARD"
}