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# renewCredentials(for:completion:)

Renews account credentials when the credentials are no longer valid.

```
func renewCredentials(for account: ACAccount!, completion completionHandler: (@Sendable (ACAccountCredentialRenewResult, (any Error)?) -> Void)!)
```

## Parameters

`account`

The account to renew credentials.

`completionHandler`

The handler to call when the renewal has completed.

## Discussion

> Important:
> You can call this method from synchronous code using a completion handler, as shown on this page, or you can call it as an asynchronous method that has the following declaration:
> 
> ```swift
> func renewCredentials(for account: ACAccount!) async throws -> ACAccountCredentialRenewResult
> ```
> 
> For information about concurrency and asynchronous code in Swift, see <doc://com.apple.documentation/documentation/Swift/calling-objective-c-apis-asynchronously>.

For Twitter and Sina Weibo accounts, this method prompts the user to go to Settings to re-enter their password.

For Facebook accounts, if the access token has become invalid due to a regular expiration, this method obtains a new one.

If the user has deauthorized your app, this renewal request returns `ACAccountCredentialRenewResultRejected`.

---

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