> ## Documentation Index
> Fetch the complete documentation index at: https://devdocs.xbox.com/llms.txt
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# ClientSessionStartPayload

> ClientSessionStartPayload data type.

## Properties

| Name            | Type   | Description                                     |
| :-------------- | :----- | :---------------------------------------------- |
| ClientSessionID | String | The Client Session Id of the associated entity. |
| DeviceModel     | String | The Device Model of the associated entity.      |
| DeviceType      | String | The Device Type of the associated entity.       |
| OS              | String | The OS of the associated entity.                |
| UserID          | String | The User Id of the associated entity.           |


## Related topics

- [client_session_start](/services/playfab/api-references/events/Session/client-session-start.md)
- [ClientFocusChangePayload](/services/playfab/api-references/events/data-types/clientfocuschangepayload.md)
- [Sessions](/services/playfab/data-analytics/ingest-data/sessions.md)
- [VmUnassignmentStartedEventPayload](/services/playfab/api-references/events/data-types/vmunassignmentstartedeventpayload.md)
- [client_focus_change](/services/playfab/api-references/events/Session/client-focus-change.md)