> ## 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.

# unreal_client_initialization_completed

> unreal_client_initialization_completed event.

This event is triggered when Unreal client initialization is completed.

## Properties

| Name | Type | Description |
| :- | :- | :- |
| ClientInstanceId | String | A unique identifier for this game session. |
| PartyVersion | String | The version of the Party native library. |
| UnrealEngineVersion | String | The version of the Unreal Engine. |
| PlatformSDKVersion | String | The version of the platform SDK. |
| OSSPlayFabVersion | String | The version of the OnlineSubsystemPlayFab plugin. |
| TitleID | String | The PlayFab title ID. |
| OSName | String | The name of the operating system. |
| OSVersion | String | The version of the operating system. |
| DeviceMake | String | The device manufacturer name. |
| DeviceModel | String | The device model name. |
| PlatformName | String | The name of the platform. |
| AppName | String | The application name. |
| AppVersion | String | The application version. |

## Common Properties

All V2 PlayStream events are formatted as JSON objects and most share the following common properties:

| Name | Type | Description |
| :- | :- | :- |
| SchemaVersion | String | PlayStream event format version, following a semantic versioning scheme. |
| FullName | [Object](https://docs.xbox.com/services/playfab/api-references/events/data-types/fullnameobject.md) | Combination of the event name and event namespace to fully specify the event type. |
| Id | String | PlayFab-assigned unique identifier for this event. |
| Timestamp | DateTime | The time (in UTC) associated with this event. |
| Entity | [Object](https://docs.xbox.com/services/playfab/api-references/events/data-types/entityobject.md) | Details about the entity to which this event applies including Entity Id and Entity type. |
| Originator | [Object](https://docs.xbox.com/services/playfab/api-references/events/data-types/originatorobject.md) | Object describing the source and source type that initiated this event. |
| PayloadContentType | String | Specifies the content of the event payload. Default is "JSON". |
| Origin Info | Object | Optional field containing info about events originating outside of PlayFab. |


## Related topics

- [PlayStream Event Model reference](https://docs.xbox.com/services/playfab/api-references/events/index.md)
- [client_initialization_completed](https://docs.xbox.com/services/playfab/api-references/events/Networking/client-initialization-completed.md)
- [unity_client_initialization_completed](https://docs.xbox.com/services/playfab/api-references/events/Networking/unity-client-initialization-completed.md)
- [Connect to Cloud-Hosted Unreal Server](https://docs.xbox.com/services/playfab/multiplayer/servers/server-sdks/unreal-gsdk/connect-to-mps-hosted-build.md)
- [XblMultiplayerMatchStatus](https://docs.xbox.com/reference/live/xsapi-c/multiplayer_manager_c/enums/xblmultiplayermatchstatus.md)