# ChatGptOptionsBuilder.User property

Gets or sets the user identification for chat completion, which can help OpenAI to monitor and detect abuse.

```csharp
public string? User { get; set; }
```

## Remarks

See [Safety best practices](https://platform.openai.com/docs/guides/safety-best-practices/end-user-ids) for more information.

## See Also

* class [ChatGptOptionsBuilder](../ChatGptOptionsBuilder.md)
* namespace [ChatGptNet](../../ChatGptNet.md)

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