# configurationName(forStoreIdentifier:) Returns the configuration name associated with the given on-disk store identifier. ``` func configurationName(forStoreIdentifier identifier: String) -> String? ``` ## Parameters `identifier` A store identifier string, for example from `PersistentIdentifier.storeIdentifier` or a history transaction’s store identifier. ## Return Value The `name` of the `ModelConfiguration` that backs the given store, or `nil` if no store with that identifier exists in this container or if `invalidate()` has been called. ## Discussion Use this when you already have a store identifier — such as `PersistentIdentifier.storeIdentifier` from a fetched object or a store identifier from a history transaction — and need to map it back to the human-readable configuration name that produced that store. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)