---
title: NSMigrationDestinationObjectKey
framework: coredata
role: symbol
role_heading: Global Variable
path: coredata/nsmigrationdestinationobjectkey
---

# NSMigrationDestinationObjectKey

Key for the destination object.

## Declaration

```swift
let NSMigrationDestinationObjectKey: String
```

## Discussion

Discussion To access this key in a custom value expression string in the Xcode mapping model editor use $destination.

## See Also

### Constants

- [NSMigrationManagerKey](coredata/nsmigrationmanagerkey.md)
- [NSMigrationSourceObjectKey](coredata/nsmigrationsourceobjectkey.md)
- [NSMigrationEntityMappingKey](coredata/nsmigrationentitymappingkey.md)
- [NSMigrationPropertyMappingKey](coredata/nsmigrationpropertymappingkey.md)
- [NSMigrationEntityPolicyKey](coredata/nsmigrationentitypolicykey.md)