> ## 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.

# Lobby.ServerPostUpdate

> Lobby.ServerPostUpdate

Post an update to the lobby as the server-owner.

```csharp theme={null}
public void ServerPostUpdate(LobbyDataUpdate lobbyUpdate)
```

| parameter | description |
| - | - |
| lobbyUpdate | An update to apply to the shared portion of the lobby on behalf of the server owner. |

## Remarks

This is an asynchronous operation. Upon successful completion, the title is provided a [`OnServerLobbyPostUpdateCompleted`](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/PlayFabMultiplayer.PlayFabMultiplayerServer/OnServerLobbyPostUpdateCompleted) with the `OnServerLobbyPostUpdateCompleted result` field set to [`Success`](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyError/Success). Upon a failed completion, the title is provided a [`OnServerLobbyPostUpdateCompleted`](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/PlayFabMultiplayer.PlayFabMultiplayerServer/OnServerLobbyPostUpdateCompleted) with the `OnServerLobbyPostUpdateCompleted result` field set to a failed error code. If applying the update would change the state of the lobby, the title is provided a [`OnLobbyPostUpdateCompleted`](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/PlayFabMultiplayer/OnLobbyPostUpdateCompleted) sometime afterwards.

This operation completing successfully only indicates that the Lobby service has accepted the update. The title's local view of the lobby state won't reflect this update until a [`OnLobbyPostUpdateCompleted`](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/PlayFabMultiplayer/OnLobbyPostUpdateCompleted) is provided to the title with the updated state.

While this method is present in the unified, cross-platform header, it is only implemented for Windows and, XBOX. The method returns errors on other platforms.

## See Also

* class [LobbyDataUpdate](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyDataUpdate/overview.md)
* class [Lobby](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/Lobby/overview.md)
* 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/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/Lobby/overview.md)
- [PlayFabMultiplayer.PlayFabMultiplayerServer.OnServerLobbyPostUpdateCompleted](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/PlayFabMultiplayer.PlayFabMultiplayerServer/OnServerLobbyPostUpdateCompleted.md)
- [Lobby.PostUpdateAsServer](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/Lobby/PostUpdateAsServer.md)
- [PFLobbyServerPostUpdateAsServer](https://docs.xbox.com/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/functions/pflobbyserverpostupdateasserver.md)
- [PFLobbyServerPostUpdate](https://docs.xbox.com/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/functions/pflobbyserverpostupdate.md)