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# PFLobbyJoinConfiguration

> Initial configuration data used when a client joins an existing PlayFab Multiplayer lobby, including the joining member's initial property values.

The initial configuration data used when joining a lobby.

## Syntax

```cpp theme={null}
struct PFLobbyJoinConfiguration {  
    uint32_t memberPropertyCount;  
    const char* const* memberPropertyKeys;  
    const char* const* memberPropertyValues;  
}  
```

### Members

**`memberPropertyCount`**   uint32\_t

The number of initial member properties for the joiner of the lobby.

**`memberPropertyKeys`**   const char\* const\*\
*array of size `memberPropertyCount`*

The keys of the initial member properties for the joiner of the lobby.

Per-member properties are only visible to members of the lobby.

**`memberPropertyValues`**   const char\* const\*\
*array of size `memberPropertyCount`*

The values of the initial member properties for the joiner of the lobby.

Per-member properties are only visible to members of the lobby.

## Requirements

**Header:** PFLobby.h

## See also

[PFLobby members](/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/pflobby_members)


## Related topics

- [PFMultiplayerJoinLobby](/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/functions/pfmultiplayerjoinlobby.md)
- [PFMultiplayerCreateAndJoinLobby](/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/functions/pfmultiplayercreateandjoinlobby.md)
- [PFMultiplayer C/C++ API overview - PFLobby.h](/services/playfab/multiplayer/lobby/playfabmultiplayerreference-cpp/pflobby/pflobby_members.md)
- [LobbyJoinConfiguration](/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyJoinConfiguration/LobbyJoinConfiguration.md)
- [LobbyJoinConfiguration class](/services/playfab/multiplayer/lobby/unity-multiplayer-api-reference/PlayFab.Multiplayer/LobbyJoinConfiguration/overview.md)