---
title: operationID
framework: cloudkit
role: symbol
role_heading: Instance Property
path: cloudkit/ckoperation/operationid-8auuc
---

# operationID

A unique identifier for a long-lived operation.

## Declaration

```swift
var operationID: CKOperation.ID { get }
```

## Discussion

Discussion Pass this property’s value to the longLivedOperation(for:) method to fetch the corresponding long-lived operation. For more information, see Long-Lived Operations.

## See Also

### Identifying the Operation

- [CKOperation.ID](cloudkit/ckoperation/id.md)