> ## 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.

# Multiplayer Activity (MPA) concepts

> Multiplayer Activity (MPA) concepts for XBOX, including activities, invites, recent players, PlayFab Lobby integration, and MPA troubleshooting guidance.

This section describes the concepts of the Multiplayer Activity (MPA) feature.

## In this section

[Activities](/services/xbox-services/multiplayer/mpa/concepts/live-mpa-activities)
Describes advertising joinable, multiplayer experiences to other players. They can then join the experiences.

[Invites](/services/xbox-services/multiplayer/mpa/concepts/live-mpa-invites)
Describes how to send a request for another player to join a multiplayer experience.

[Recent players](/services/xbox-services/multiplayer/mpa/concepts/live-mpa-recent-players)
Describes how interactions with other players are recorded to build player relationships or report feedback.

[Integration with PlayFab Lobby & Match](/services/xbox-services/multiplayer/mpa/concepts/live-mpa-playfab-integration)
Describes best practices on how to integrate MPA with PlayFab Lobby and Match services.

[MPA troubleshooting guide](/services/xbox-services/multiplayer/mpa/concepts/live-mpa-troubleshooting)
Provides troubleshooting steps for the Multiplayer Activity service.


## Related topics

- [Concepts](/services/xbox-services/multiplayer/mpa/concepts/index.md)
- [Multiplayer Activity (MPA)](/services/xbox-services/multiplayer/mpa/live-mpa-nav.md)
- [Moving from MPSD to PlayFab Multiplayer and MPA](/services/xbox-services/multiplayer/mpsd/concepts/live-mpsd-to-mlp.md)
- [Multiplayer Activity (MPA) feature overview](/services/xbox-services/multiplayer/mpa/live-mpa-overview.md)
- [Multiplayer FAQ and troubleshooting](/services/xbox-services/multiplayer/mpsd/concepts/live-multiplayer-2015-faq.md)