player_experiment_variants_changed - XBOX Game Development Documentation

This event is triggered when a player’s set of experiment variants is changed.

Properties

Name	Type	Description
PreviousExperimentVariants	String[]	Previous experiment variant list.
ExperimentVariants	String[]	New experiment variant list.

Common Properties

All V1 PlayStream events are formatted as JSON objects and share the following common properties:

Name	Type	Description
EntityId	String	The identifier for the entity (title, player, etc) to which this event applies.
EntityType	String	The type of entity (player, title, etc.) to which this event applies. If PlayFab is meant to take action on this entity, then the EntityType must be either ‘player’, ‘character’, or ‘title’. It is required that any entity type that PlayFab does not currently parse should be prepended with a namespace (like ‘com.mygame.guild’) as PlayFab may begin to parse root entities at any time.
EventId	String	PlayFab-assigned unique identifier for this event.
EventName	String	The name of this event.
EventNamespace	String	The assigned namespacing for this event. For example: ‘com.myprogram.ads’
Source	String	The name of the source of this PlayStream event; will be PlayFab if the event originated from us.
SourceType	SourceType	The type of source of this event (PlayFab partner, other backend, or from the PlayFab API).
Timestamp	DateTime	The time (in UTC) associated with this event.

Last modified on August 1, 2026

Related topics

PlayStream event model reference for PlayFab ExperimentVariant Experiment Experiments Quickstart Exclusion Group in Experiments

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