Payment transaction is a combination of authorization and capture processed at a time. This transaction type is generally used when the goods or services can be immediately provided to the customer.
The refund allows you to credit the customer, for example in case of returned goods or cancellation.
The request sends (pushes) funds to a recipient's account. It doesn't require that the account had to be used before in a payment transaction. The transaction is not supported by all payment systems and the transaction is not available to all merchants.
The request is used when you need to synchronize an operation status or its details by
The request helps to get the balance of the merchant account with the payment method provider.
The request can be used to get the list of currencies and payment networks available for a payment or payout operation.