# IStreamPubSub.FaultSubscription(QualifiedStreamId, GuidId)

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.istreampubsub/) | [Methods](/orleans/docs/api/csharp/microsoft.orleans.streaming/orleans.streams.istreampubsub/methods/)

```csharp
public abstract Task<bool> FaultSubscription(QualifiedStreamId streamId, GuidId subscriptionId)
```

### Parameters

- `streamId` (`QualifiedStreamId`)
- `subscriptionId` (`GuidId`)