> ## Documentation Index
> Fetch the complete documentation index at: https://devdocs.xbox.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Concepts

> Reference and concepts for Multiplayer Activity (MPA) in the XBOX Game Development Kit (XBOX Services). Includes concepts and API guidance.

Explore concepts topics for XBOX game development.

<CardGroup cols={2}>
  <Card title="Activities" icon="users-line" href="/services/xbox-services/multiplayer/mpa/concepts/live-mpa-activities">
    This topic describes advertising joinable, multiplayer experiences to other players.
  </Card>

  <Card title="Multiplayer activity (mpa) concepts" icon="lightbulb" href="/services/xbox-services/multiplayer/mpa/concepts/live-mpa-concepts-nav">
    This section describes the concepts of the Multiplayer Activity (MPA) feature.
  </Card>

  <Card title="Send a request for another player to" icon="users-line" href="/services/xbox-services/multiplayer/mpa/concepts/live-mpa-invites">
    This topic describes how to send a request for another player to join a multiplayer experience.
  </Card>

  <Card title="Integration with PlayFab lobby & match" icon="shuffle" href="/services/xbox-services/multiplayer/mpa/concepts/live-mpa-playfab-integration">
    This topic describes how to integrate MPA with PlayFab Lobby and Match services.
  </Card>

  <Card title="Recent players" icon="users-line" href="/services/xbox-services/multiplayer/mpa/concepts/live-mpa-recent-players">
    This topic describes how interactions with other players are recorded to build player relationships or report feedback.
  </Card>

  <Card title="Mpa invite and activity troubleshooting" icon="triangle-exclamation" href="/services/xbox-services/multiplayer/mpa/concepts/live-mpa-troubleshooting">
    The following guide is a starting point to assist titles with troubleshooting of invite and activity functionality using the MPA service.
  </Card>
</CardGroup>

## See also

* [How to](/services/xbox-services/multiplayer/mpa/how-to/index)


## Related topics

- [Concepts](/services/xbox-services/multiplayer/invites/concepts/index.md)
- [Matchmaking concepts](/services/xbox-services/multiplayer/matchmaking/concepts/live-matchmaking-concepts-nav.md)
- [Multiplayer concepts](/services/xbox-services/multiplayer/concepts/live-multiplayer-concepts-nav.md)
- [Reputation concepts](/services/xbox-services/community/reputation/concepts/live-reputation-concepts-nav.md)
- [Invites concepts](/services/xbox-services/multiplayer/invites/concepts/live-invites-concepts-nav.md)