> ## Documentation Index
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> Use this file to discover all available pages before exploring further.

# PFLobby Search Keys

> Reference for the predefined PFLobby search keys used by the PlayFab Multiplayer C++ SDK when querying lobbies through matchmaking and lobby search APIs.

Values representing the lobby's predefined search keys.

## Syntax

```cpp theme={null}
constexpr char PFLobbyMemberCountSearchKey[] = "lobby/memberCount";
constexpr char PFLobbyMemberCountRemainingSearchKey[] = "lobby/memberCountRemaining"
constexpr char PFLobbyAmMemberSearchKey[] = "lobby/amMember";
constexpr char PFLobbyAmOwnerSearchKey[] = "lobby/amOwner";
constexpr char PFLobbyMembershipLockSearchKey[] = "lobby/membershipLock";
constexpr char PFLobbyAmServerSearchKey[] = "lobby/amServer"
```

## Constants

| Constant                             | Description                                                                                                                                                                                                                                                                                                                | Example                              |
| ------------------------------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------ |
| PFLobbyMemberCountSearchKey          | A special, predefined search key that can be used in the [PFLobbySearchConfiguration](/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/structs/pflobbysearchconfiguration) filtering and sorting strings to search for lobbies based on the current number of members in the lobby.             | "lobby/memberCount lt 5"             |
| PFLobbyMemberCountRemainingSearchKey | A special, predefined search key that can be used in the [PFLobbySearchConfiguration](/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/structs/pflobbysearchconfiguration) filtering and sorting strings to search for lobbies based on the number of remaining members who can join the lobby. | "lobby/memberCountRemaining gt 0"    |
| PFLobbyAmMemberSearchKey             | A special, predefined search key that can be used in the [PFLobbySearchConfiguration](/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/structs/pflobbysearchconfiguration) filtering string to search for lobbies that you are currently a member of.                                           | "lobby/amMember eq true"             |
| PFLobbyAmOwnerSearchKey              | A special, predefined search key that can be used in the [PFLobbySearchConfiguration](/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/structs/pflobbysearchconfiguration) filtering string to search for lobbies that you own.                                                                 | "lobby/amOwner eq true"              |
| PFLobbyMembershipLockSearchKey       | A special, predefined search key that can be used in the [PFLobbySearchConfiguration](/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/structs/pflobbysearchconfiguration) filtering string to search for lobbies with a specific lock state.                                                   | "lobby/membershipLock eq 'Unlocked'" |
| PFLobbyAmServerSearchKey             | A special, predefined search key that can be used in the [PFLobbySearchConfiguration](/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/structs/pflobbysearchconfiguration) filtering string to search for lobbies that the server has joined but does not own.                                  | "lobby/amServer eq true"             |

## Requirements

**Header:** PFLobby.h

## See also

[PFLobbySearchConfiguration](/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/structs/pflobbysearchconfiguration)


## Related topics

- [PFLobbyGetSearchPropertyKeys](/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/functions/pflobbygetsearchpropertykeys.md)
- [Lobby.LobbyMemberCountSearchKey](/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyConstants/LobbyMemberCountSearchKey.md)
- [LobbyConstants.LobbyAmOwnerSearchKey](/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyConstants/LobbyAmOwnerSearchKey.md)
- [LobbyConstants.LobbyAmMemberSearchKey](/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyConstants/LobbyAmMemberSearchKey.md)
- [PFLobbySearchConfiguration](/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/structs/pflobbysearchconfiguration.md)