Every checkout process and its subsequent actions (delivery and post-checkout changes) are identified by a unique transaction-id generated by the Ratepay Gateway during the Payment Initialization.
Ratepay Gateway operations for follow-up operations
This is used to inform us about the delivered items of a transaction. This activates the claim against the end customer and the payment due date begins.
With the PAYMENT_CHANGE you can submit changes of an order to us. This operation is separated into different subtypes:
Change Order,
Cancellation,
Return
and Credit.
Ratepay Gateway operations for instalment calculation
The Configuration Request allows to read the stored instalment configuration parameters for the used profile.
The Calculation Request is called during the checkout process when customers experiment with the Instalment Calculator to configure their individual instalment plans. A transaction ID is not needed.