# type DropDownCustomFieldValue (v202508)

**Service** [CreativeService](https://developers.google.com/ad-manager/api/reference/v202508/CreativeService.DropDownCustomFieldValue) **ForecastService** [LineItemService](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.DropDownCustomFieldValue) [OrderService](https://developers.google.com/ad-manager/api/reference/v202508/OrderService.DropDownCustomFieldValue) [ProposalLineItemService](https://developers.google.com/ad-manager/api/reference/v202508/ProposalLineItemService.DropDownCustomFieldValue) [ProposalService](https://developers.google.com/ad-manager/api/reference/v202508/ProposalService.DropDownCustomFieldValue) **Inheritance** [BaseCustomFieldValue](https://developers.google.com/ad-manager/api/reference/v202508/ForecastService.BaseCustomFieldValue) ▼ [CustomFieldValue](https://developers.google.com/ad-manager/api/reference/v202508/ForecastService.CustomFieldValue) **DropDownCustomFieldValue**

A [CustomFieldValue](https://developers.google.com/ad-manager/api/reference/v202508/ForecastService.CustomFieldValue) for a [CustomField](https://developers.google.com/ad-manager/api/reference/v202508/CustomFieldService.CustomField) that has a [CustomField.dataType](https://developers.google.com/ad-manager/api/reference/v202508/CustomFieldService.CustomField#dataType) of
[CustomFieldDataType.DROP_DOWN](https://developers.google.com/ad-manager/api/reference/v202508/CustomFieldService.CustomFieldDataType#DROP_DOWN)

*** ** * ** ***

Namespace
:
    `https://www.google.com/apis/ads/publisher/v202508`

| ## Field ||
|---|---|
| **`BaseCustomFieldValue` (inherited)** ||
| ### `customFieldId` | ` xsd:long` Id of the `CustomField` to which this value belongs. This attribute is required. |
| **`DropDownCustomFieldValue`** ||
| ### `customFieldOptionId` | ` xsd:long` The [ID](https://developers.google.com/ad-manager/api/reference/v202508/CustomFieldService.CustomFieldOption#id) of the [CustomFieldOption](https://developers.google.com/ad-manager/api/reference/v202508/CustomFieldService.CustomFieldOption) for this value. |