About the Order Transactions API

The eCommerce Order Transactions API concentrates records and details of payments and refunds associated with eCommerce orders.

With the Order Transactions API you can:

Before you begin

  • The Order Transactions API records payments and refunds. It doesn't charge or refund funds. Adding a payment record or updating a payment status has no effect on the actual money movement.
  • To issue a refund, use Refund Payments in the Order Billing API. The refund is then recorded in the order's transactions.
  • After a payment record is added or updated, the order's paymentStatus is recalculated asynchronously. Reading the order immediately afterward may still show the previous payment status.

Terminology

  • Transaction: Global term for a transfer of funds. This can be either one of:
    • Payment: A transfer of funds from customer to merchant/seller when making a purchase.
    • Refund: A reimbursing transfer of funds back to the buyer.
  • Chargeback: A payment reversal initiated by the buyer's bank or card issuer, recorded on the relevant payment.

Last updated: 28 July 2026

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