---
title: "issueChallenge(toPlayers:message:)"
framework: gamekit
role: symbol
role_heading: Instance Method
path: "gamekit/gkscore/issuechallenge(toplayers:message:)"
---

# issueChallenge(toPlayers:message:)

Issues a score challenge to a set of players.

## Declaration

```swift
func issueChallenge(toPlayers playerIDs: [String]?, message: String?)
```

## Parameters

- `playerIDs`: The identifiers for the players to challenge. Because Game Center limits the number of players in a challenge request to 10, the maximum size of this array is 10.
- `message`: A text message to display to the players.

## Discussion

Discussion Set up your game to issue a challenge request only in direct response to a player action. That is, your game provides a user interface that allows the player to choose to issue a challenge and choose which friends receive the challenge, and only issue a challenge when the player wishes to do so.

## See Also

### Deprecated Methods and Properties

- [category](gamekit/gkscore/category.md)
- [context](gamekit/gkscore/context.md)
- [date](gamekit/gkscore/date.md)
- [formattedValue](gamekit/gkscore/formattedvalue.md)
- [leaderboardIdentifier](gamekit/gkscore/leaderboardidentifier.md)
- [player](gamekit/gkscore/player.md)
- [rank](gamekit/gkscore/rank.md)
- [value](gamekit/gkscore/value.md)
- [shouldSetDefaultLeaderboard](gamekit/gkscore/shouldsetdefaultleaderboard.md)
- [init(leaderboardIdentifier:)](gamekit/gkscore/init(leaderboardidentifier:).md)
- [init(leaderboardIdentifier:player:)](gamekit/gkscore/init(leaderboardidentifier:player:).md)
- [init(category:)](gamekit/gkscore/init(category:).md)
- [init(leaderboardIdentifier:forPlayer:)](gamekit/gkscore/init(leaderboardidentifier:forplayer:).md)
- [playerID](gamekit/gkscore/playerid.md)
- [report(completionHandler:)](gamekit/gkscore/report(completionhandler:).md)