> ## 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.

# XblMultiplayerManagerSetAutoFillMembersDuringMatchmaking

> XblMultiplayerManagerSetAutoFillMembersDuringMatchmaking

Sets if matchmaking should auto fill open slots during gameplay. This can be changed anytime.

## Syntax

```cpp theme={null}
void XblMultiplayerManagerSetAutoFillMembersDuringMatchmaking(  
         bool autoFillMembers  
)  
```

### Parameters

*autoFillMembers*   \_In\_\
Type: bool

Set true, to search for members during matchmaking if the game has open slots. Set false, to not allow auto fill.

### Return value

Type: void

## Requirements

**Header:** multiplayer\_manager\_c.h

**Library:** Microsoft.Xbox.Services.142.C.lib or Microsoft.Xbox.Services.143.C.lib

## See also

[multiplayer\_manager\_c](https://docs.xbox.com/reference/live/xsapi-c/multiplayer_manager_c/multiplayer_manager_c_members.md)


## Related topics

- [XblMultiplayerManagerAutoFillMembersDuringMatchmaking](https://docs.xbox.com/reference/live/xsapi-c/multiplayer_manager_c/functions/xblmultiplayermanagerautofillmembersduringmatchmaking.md)
- [multiplayer_manager_c (contents)](https://docs.xbox.com/reference/live/xsapi-c/multiplayer_manager_c/multiplayer_manager_c_members.md)
- [Enable finding a multiplayer game by using SmartMatch using Multiplayer Manager](https://docs.xbox.com/services/xbox-services/multiplayer/mpm/how-to/live-play-multiplayer-with-matchmaking.md)
- [Multiplayer tasks](https://docs.xbox.com/services/xbox-services/multiplayer/mpsd/how-to/live-mpsd-how-tos.md)
- [Multiplayer Session advanced topics](https://docs.xbox.com/services/xbox-services/multiplayer/mpsd/concepts/live-mpsd-details.md)