---
title: TransactionIdentifier
framework: swiftdata
role: symbol
role_heading: Associated Type
path: swiftdata/historydelete/transactionidentifier-swift.associatedtype
---

# TransactionIdentifier

The type associated with the transaction identifier.

## Declaration

```swift
associatedtype TransactionIdentifier : Comparable, Hashable, Sendable
```

## See Also

### Associated types

- [ChangeIdentifier](swiftdata/historydelete/changeidentifier-swift.associatedtype.md)
- [Model](swiftdata/historydelete/model.md)