> ## Documentation Index
> Fetch the complete documentation index at: https://docs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Real-time messages for Lobby and Matchmaking APIs

> LobbyError members

Helper class for the error code of operations.

```csharp theme={null}
public class LobbyError
```

## Public Members

| name | description |
| - | - |
| [LobbyError](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyError/LobbyError.md)() | The default constructor. |
| const [InvalidArg](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyError/InvalidArg.md) | Indicates that the operation failed due to an invalid argument. |
| const [Success](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyError/Success.md) | Indicates that the operation succeeded. |
| static [FAILED](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyError/FAILED.md)(…) | Generic test for failure on any status value. |
| static [SUCCEEDED](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyError/SUCCEEDED.md)(…) | Generic test for success on any status value (non-negative numbers indicate success). |

## See Also

* namespace [PlayFab.Multiplayer](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference.md)


## Related topics

- [Real-time messages for Lobby and Matchmaking APIs](https://docs.xbox.com/services/playfab/multiplayer/real-time-messages/overview.md)