---
metadata:
  - name: generator
    content: Diplodoc Platform v5.52.0
alternate:
  - https://yandex.com/dev/direct/doc/en/best-practice/nillable.md
  - https://yandex.com/dev/direct/doc/ru/best-practice/nillable.md
  - href: en/best-practice/nillable.md
    type: text/markdown
    title: Markdown version
  - href: ../llms.txt
    type: text/markdown
    title: llms.txt
sourcePath: en/dg/best-practice/nillable.md
---
> **Documentation Index:** Fetch the complete configuration index at https://yandex.com/dev/direct/doc/en/llms.txt

# null (nil) value

Some parameters support the `null` value. The descriptions of these parameters indicate “nillable”.

**JSON**

```javascript
"_field_name_": null
```

**SOAP**

```
<_field_name_ xsi:nil="true">
```

## Resetting (clearing) a parameter

In the `update` and `set` methods, you can pass `null` to delete the value for such a parameter.

## Getting a parameter

If a parameter is requested but its value is not set, the `get` method returns `null`.