> For the complete documentation index, see [llms.txt](https://docs.geopard.tech/geopard-tutorials/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.geopard.tech/geopard-tutorials/api-docs/geopard-api-requests-overview/66.-mutation-save-field.md).

# 66. Mutation: Save Field

Mutation to amend the existing "Field” with a new boundary and/or name. 

{% hint style="info" %}
To edit the boundary of the existing "Field" use the `registerField` mutation.
{% endhint %}

{% code overflow="wrap" lineNumbers="true" %}

```graphql
mutation SaveFieldSample {
  saveField(
    input: { 
      uuid: "<placeholder_of_field_uuid>"
      farmUuid: "<placeholder_of_farm_uuid>"
    	 name: "Field_name" 
    }
  ) {
    uuid
    farmUuid
    name
    boundaryUrl
    topographyMaps {
      uuid
      fieldUuid
      status
      geoMaps {
        shortName
        url
        hexColorCodes
        classes
      }
    }
    labels {
      name
      value
    }
  }
}
```

{% endcode %}


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