# enum UnitType (v202508)

**Service** [ForecastService](https://developers.google.com/ad-manager/api/reference/v202508/ForecastService.UnitType) **LineItemService** [ProposalLineItemService](https://developers.google.com/ad-manager/api/reference/v202508/ProposalLineItemService.UnitType) **Dependencies** [Goal](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.Goal) ▼ **UnitType**

Indicates the type of unit used for defining a reservation. The
[CostType](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.CostType) can differ from the [UnitType](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.UnitType) - an
ad can have an impression goal, but be billed by its click. Usually
[CostType](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.CostType) and [UnitType](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.UnitType) will refer to the
same unit.

*** ** * ** ***

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

| Enumeration | Description |
|---|---|
| `IMPRESSIONS` | The number of impressions served by creatives associated with the line item. Line items of all [LineItemType](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.LineItemType) support this `UnitType`. |
| `CLICKS` | The number of clicks reported by creatives associated with the line item. The [LineItem.lineItemType](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.LineItem#lineItemType) must be [LineItemType.STANDARD](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.LineItemType#STANDARD), [LineItemType.BULK](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.LineItemType#BULK) or [LineItemType.PRICE_PRIORITY](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.LineItemType#PRICE_PRIORITY). |
| `CLICK_THROUGH_CPA_CONVERSIONS` | The number of click-through Cost-Per-Action (CPA) conversions from creatives associated with the line item. This is only supported as secondary goal and the [LineItem.costType](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.LineItem#costType) must be [CostType.CPA](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.CostType#CPA). |
| `VIEW_THROUGH_CPA_CONVERSIONS` | The number of view-through Cost-Per-Action (CPA) conversions from creatives associated with the line item. This is only supported as secondary goal and the [LineItem.costType](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.LineItem#costType) must be [CostType.CPA](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.CostType#CPA). |
| `TOTAL_CPA_CONVERSIONS` | The number of total Cost-Per-Action (CPA) conversions from creatives associated with the line item. This is only supported as secondary goal and the [LineItem.costType](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.LineItem#costType) must be [CostType.CPA](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.CostType#CPA). |
| `VIEWABLE_IMPRESSIONS` | The number of viewable impressions reported by creatives associated with the line item. The [LineItem.lineItemType](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.LineItem#lineItemType) must be [LineItemType.STANDARD](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.LineItemType#STANDARD). |
| `IN_TARGET_IMPRESSIONS` | The number of in-target impressions reported by third party measurements. The [LineItem.lineItemType](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.LineItem#lineItemType) must be [LineItemType.STANDARD](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.LineItemType#STANDARD). |
| `COMPLETED_VIEWS` | The number of completed views reported by creatives associated with the line item. A completed view is defined as having watched the entirety of the in-stream video ad and is only supported for standard reservation video line items. The [LineItem.lineItemType](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.LineItem#lineItemType) must be [LineItemType.STANDARD](https://developers.google.com/ad-manager/api/reference/v202508/LineItemService.LineItemType#STANDARD). |
| `UNKNOWN` | The value returned if the actual value is not exposed by the requested API version. |