> ## 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.

# Experiment

> Experiment data type.

Payload representing updates to experiment configuration.

## Properties

| Name                            | Type                                                                                         | Description                                                     |
| :------------------------------ | :------------------------------------------------------------------------------------------- | :-------------------------------------------------------------- |
| StartTime                       | DateTime                                                                                     | When the experiment should start or was started.                |
| DurationInDays                  | int32                                                                                        | The duration of the experiment in days.                         |
| SegmentId                       | String                                                                                       | The ID of the segment to which this experiment applies.         |
| ExclusionGroupId                | String                                                                                       | The ID of the exclusion group to which this experiment applies. |
| ExclusionGroupTrafficAllocation | int32                                                                                        | Percentage of exclusion-group traffic seen by this experiment.  |
| Variants                        | [ExperimentVariant](/services/playfab/api-references/events/data-types/experimentvariant)\[] | List of variants for the experiment.                            |


## Related topics

- [Experimentation Key-terms](/services/playfab/live-service-management/game-configuration/experiments/experimentation-key-terms.md)
- [Manage Experiments](/services/playfab/live-service-management/game-configuration/experiments/manage-experiments.md)
- [experiment_created](/services/playfab/api-references/events/Experimentation/experiment-created.md)
- [experiment_updated](/services/playfab/api-references/events/Experimentation/experiment-updated.md)
- [Experiments Quickstart](/services/playfab/live-service-management/game-configuration/experiments/quickstart.md)