---
title: PaymentCardTransactionRequest.TransactionAmountDescription.preauthorization
framework: proximityreader
role: symbol
role_heading: Case
path: proximityreader/paymentcardtransactionrequest/transactionamountdescription/preauthorization
---

# PaymentCardTransactionRequest.TransactionAmountDescription.preauthorization

Places a temporary hold on the customer’s account. Only allowed for PaymentCardTransactionRequest.TransactionType.purchase

## Declaration

```swift
case preauthorization
```