> ## 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

> LobbyConstants members

Information for all the constants related to lobby.

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

## Public Members

| name | description |
| - | - |
| [LobbyConstants](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyConstants/LobbyConstants.md)() | The default constructor. |
| static readonly [LobbyAmMemberSearchKey](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyConstants/LobbyAmMemberSearchKey.md) | A special, predefined search key, which can be used in the [`FilterString`](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbySearchConfiguration/FilterString) filtering string to search for lobbies that you're currently a member of. |
| static readonly [LobbyAmOwnerSearchKey](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyConstants/LobbyAmOwnerSearchKey.md) | A special, predefined search key, which can be used in the [`FilterString`](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbySearchConfiguration/FilterString) filtering string to search for lobbies that you own. |
| const [LobbyClientRequestedSearchResultCountUpperLimit](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyConstants/LobbyClientRequestedSearchResultCountUpperLimit.md) | The maximum number of search results that client-entity callers may request when performing a [`FindLobbies`](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/PlayFabMultiplayer/FindLobbies) operation. |
| const [LobbyMaxLobbyPropertyCount](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyConstants/LobbyMaxLobbyPropertyCount.md) | The maximum number of concurrent properties which can be stored for the lobby and which aren't owned by any specific member. |
| const [LobbyMaxMemberCountLowerLimit](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyConstants/LobbyMaxMemberCountLowerLimit.md) | The minimum allowed value for [`MaxMemberCount`](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyCreateConfiguration/MaxMemberCount) and [`MaxMemberCount`](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyDataUpdate/MaxMemberCount). |
| const [LobbyMaxMemberCountUpperLimit](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyConstants/LobbyMaxMemberCountUpperLimit.md) | The maximum allowed value for [`MaxMemberCount`](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyCreateConfiguration/MaxMemberCount) and [`MaxMemberCount`](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyDataUpdate/MaxMemberCount). |
| const [LobbyMaxMemberPropertyCount](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyConstants/LobbyMaxMemberPropertyCount.md) | The maximum number of concurrent properties allowed for each member in the lobby. |
| const [LobbyMaxSearchPropertyCount](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyConstants/LobbyMaxSearchPropertyCount.md) | The maximum number of concurrent search properties which can be stored for the lobby. |
| static readonly [LobbyMemberCountSearchKey](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyConstants/LobbyMemberCountSearchKey.md) | A special, predefined search key, which can be used in the [`FilterString`](https://docs.xbox.com/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbySearchConfiguration/FilterString) filtering and sorting strings to search for lobbies based on the current number of members in the lobby. |

## 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)