# type CustomFieldOption (v202602)

**Service** **CustomFieldService** **Dependencies** [DropDownCustomField](https://developers.google.com/ad-manager/api/reference/v202602/CustomFieldService.DropDownCustomField) [createCustomFieldOptions()](https://developers.google.com/ad-manager/api/reference/v202602/CustomFieldService#createCustomFieldOptions) [getCustomFieldOption()](https://developers.google.com/ad-manager/api/reference/v202602/CustomFieldService#getCustomFieldOption) [updateCustomFieldOptions()](https://developers.google.com/ad-manager/api/reference/v202602/CustomFieldService#updateCustomFieldOptions) ▼ **CustomFieldOption**

An option represents a permitted value for a custom field that has a [CustomField.dataType](https://developers.google.com/ad-manager/api/reference/v202602/CustomFieldService.CustomField#dataType)
of [CustomFieldDataType.DROP_DOWN](https://developers.google.com/ad-manager/api/reference/v202602/CustomFieldService.CustomFieldDataType#DROP_DOWN).

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Namespace
:
    `https://www.google.com/apis/ads/publisher/v202602`

| ## Field ||
|---|---|
| ### `id` | ` xsd:long` Unique ID of this option. This value is readonly and is assigned by Google. |
| ### `customFieldId` | ` xsd:long` The id of the custom field this option belongs to. |
| ### `displayName` | ` xsd:string` The display name of this option. |