# Subscribers.Completion A signal that a publisher doesn’t produce additional elements, either due to normal completion or an error. ``` @frozen enum Completion where Failure : Error ``` ## Topics ### Completion states [`Subscribers.Completion.finished`](/documentation/Combine/Subscribers/Completion/finished) The publisher finished normally. [`Subscribers.Completion.failure(_:)`](/documentation/Combine/Subscribers/Completion/failure(_:)) The publisher stopped publishing due to the indicated error. --- 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)