---
title: appTransactionId
framework: appstoreserverapi
role: symbol
role_heading: Type
path: appstoreserverapi/apptransactionid
---

# appTransactionId

The unique identifier of the app download transaction.

## Declaration

```data
string appTransactionId
```

## Mentioned in

App Store Server API changelog

## Discussion

Discussion To get app transaction information, call Get App Transaction Info and provide the appTransactionId. For more information, see appTransactionID.