# enum DeliveryRateType (v202511)

**Service** [ForecastService](https://developers.google.com/ad-manager/api/reference/v202511/ForecastService.DeliveryRateType) **LineItemService** [LineItemTemplateService](https://developers.google.com/ad-manager/api/reference/v202511/LineItemTemplateService.DeliveryRateType) [ProposalLineItemService](https://developers.google.com/ad-manager/api/reference/v202511/ProposalLineItemService.DeliveryRateType) **Dependencies** [LineItemSummary](https://developers.google.com/ad-manager/api/reference/v202511/LineItemService.LineItemSummary) ▼ **DeliveryRateType**

Possible delivery rates for a [LineItem](https://developers.google.com/ad-manager/api/reference/v202511/LineItemService.LineItem), which dictate the manner in
which they are served.

*** ** * ** ***

Namespace
:
    `https://www.google.com/apis/ads/publisher/v202511`

| Enumeration | Description |
|---|---|
| `EVENLY` | Line items are served as evenly as possible across the number of days specified in a line item's [LineItem.duration](https://developers.google.com/ad-manager/api/reference/v202511/LineItemService.LineItem#duration). |
| `FRONTLOADED` | Line items are served more aggressively in the beginning of the flight date. |
| `AS_FAST_AS_POSSIBLE` | The booked impressions for a line item may be delivered well before the [LineItem.endDateTime](https://developers.google.com/ad-manager/api/reference/v202511/LineItemService.LineItem#endDateTime). Other lower-priority or lower-value line items will be stopped from delivering until this line item meets the number of impressions or clicks it is booked for. |