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# reportPublicKeyCredentialUpdate(forRelyingParty:userHandle:newName:)

Receives a report from the system that a relying party indicated that a passkey’s user name updated.

```
func reportPublicKeyCredentialUpdate(forRelyingParty relyingParty: String, userHandle: Data, newName: String)
```

## Parameters

`relyingParty`

The relying party, typically a website, for which to save the credential.

`userHandle`

The user identifier.

`newName`

The new user name for the credential.

## Discussion

The system calls this method when a relying party sends an updated user name by calling [`reportPublicKeyCredentialUpdate(relyingPartyIdentifier:userHandle:newName:)`](/documentation/AuthenticationServices/ASCredentialUpdater/reportPublicKeyCredentialUpdate(relyingPartyIdentifier:userHandle:newName:)).

> Important: Perform any updates in the background and don’t show a blocking UI or any error.

To indicate support for this feature, add the key `SupportsCredentialUpdate` with a value of `YES` under the `ASCredentialProviderExtensionCapabilities` dictionary in your app’s information property list:

```not specified
Info.plist
├─ NSExtension
    ├─ NSExtensionAttributes
        ├─ ASCredentialProviderExtensionCapabilities
            ├─ SupportsCredentialUpdate => YES
```

---

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