Process a Pre-Authorization

This guide shows you how to reserve funds on a customer's card without capturing them immediately.

---

Pre-Authorization

// Pre-auth for €50.00
startPaymentTransaction(
    type = StartTransactionType.PREAUTH,
    amountInCents = 5000,
    uniqueTransactionId = "",
    enablePrinting = true
)

---

Parameters

Parameter	Value	Description
type	StartTransactionType.PREAUTH	Transaction type
amountInCents	5000	Amount to reserve in cents (€50.00)
uniqueTransactionId	""	Leave empty for pre-auth
enablePrinting	true	Enable receipt printing

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Important

Store the uti from the response—you'll need it to complete the pre-authorization later.