> ## 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.

# Multiplayer Activity (MPA) concepts (contents)

> 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](https://docs.xbox.com/services/xbox-services/multiplayer/mpa/concepts/live-mpa-activities.md)
Describes advertising joinable, multiplayer experiences to other players. They can then join the experiences.

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

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

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

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


## Related topics

- [Multiplayer Activity (MPA) (contents)](https://docs.xbox.com/services/xbox-services/multiplayer/mpa/live-mpa-nav.md)
- [Moving from MPSD to PlayFab Multiplayer and MPA](https://docs.xbox.com/services/xbox-services/multiplayer/mpsd/concepts/live-mpsd-to-mlp.md)
- [Multiplayer Activity example code (contents)](https://docs.xbox.com/services/xbox-services/multiplayer/mpa/how-to/live-mpa-how-to-nav.md)
- [Multiplayer Session Directory (MPSD) concepts (contents)](https://docs.xbox.com/services/xbox-services/multiplayer/mpsd/concepts/live-mpsd-concepts-nav.md)
- [Multiplayer FAQ and troubleshooting](https://docs.xbox.com/services/xbox-services/multiplayer/mpsd/concepts/live-multiplayer-2015-faq.md)