Complete a Pre-Authorization

This guide shows you how to capture funds from a previously authorized pre-authorization.

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Pre-Authorization Completion

// Complete pre-auth (final amount may differ from original pre-auth, currently app supports only lower amounts)
startPaymentTransaction(
    type = StartTransactionType.COMPLETION,
    amountInCents = 4500, // Final amount
    uniqueTransactionId = originalPreAuthUti, // UTI of original pre-auth
    enablePrinting = true
)

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Parameters

Parameter	Value	Description
type	StartTransactionType.COMPLETION	Transaction type
amountInCents	4500	Final amount in cents (€45.00)
uniqueTransactionId	originalPreAuthUti	UTI of original pre-auth
enablePrinting	true	Enable receipt printing

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Critical Requirements

• Completion Amount: Amount must be lower or equal to pre-authorization amount
• The app currently supports only lower or equal amounts