---
title: transactionId
framework: advancedcommerceapi
role: symbol
role_heading: Type
path: advancedcommerceapi/transactionid
---

# transactionId

A unique identifier that the App Store generates for a transaction.

## Declaration

```data
string transactionId
```

## See Also

### Data types

- [currency](advancedcommerceapi/currency.md)
- [description](advancedcommerceapi/description.md)
- [dependentSKU](advancedcommerceapi/dependentsku.md)
- [displayName](advancedcommerceapi/displayname.md)
- [effective](advancedcommerceapi/effective.md)
- [period](advancedcommerceapi/period.md)
- [price](advancedcommerceapi/price.md)
- [proratedPrice](advancedcommerceapi/proratedprice.md)
- [retainBillingCycle](advancedcommerceapi/retainbillingcycle.md)
- [refundAmount](advancedcommerceapi/refundamount.md)
- [refundReason](advancedcommerceapi/refundreason.md)
- [refundRiskingPreference](advancedcommerceapi/refundriskingpreference.md)
- [SKU](advancedcommerceapi/sku.md)
- [storefront](advancedcommerceapi/storefront.md)
- [taxCode](advancedcommerceapi/taxcode.md)