Payment Refund

To interact with the API, use the Unitpay PHP-SDK library.

To make a refund, run a GET request:

	Value	Description
paymentId	number	Payment ID in the UnitPay system
secretKey	line	Project secret key
sum	number	The refund amount, if the payment system does not support a full refund (Optional parameter). If the parameter is not transmitted, a full refund will be made

IMPORTANT NOTE: In case of a partial refund of the original amount, there is no protection against duplication for repeated refunds! The only check that is implemented for a partial refund is that you cannot return the same amount within half an hour for the same transaction: an error message will appear.

You can run the query in test mode. Learn more

Successful response

Платеж успешно подтвержден	Payment successfully confirmed

	Value	Description
message	line	The comment of a successful transaction can be used as a hint to the user after completing the request

Error response

Неверный секретный ключ	Invalid secret key

	Value	Description
message	line	Information with a description of the request error

You can only make one full or partial refund per payment.