Possible delivery rates for a LineItem, which dictate the manner in
which they are served.
Namespace
https://www.google.com/apis/ads/publisher/v202502
Enumeration
Description
EVENLY
Line items are served as evenly as possible across the number of
days specified in a line item's 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. 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.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-06 UTC."],[],["The document defines the `DeliveryRateType` for line items within ad management services. It details three delivery rate options: `EVENLY`, where ads are served uniformly throughout the line item's duration; `FRONTLOADED`, serving ads more heavily at the start; and `AS_FAST_AS_POSSIBLE`, prioritizing the line item to meet its booked impressions or clicks quickly, potentially halting other ads until the goal is met. The LineItemTemplate, ForecastService, LineItemService, and ProposalLineItemService are associated with the DeliveryRateType.\n"],null,["**Service** \n[ForecastService](/ad-manager/api/reference/v202502/ForecastService.DeliveryRateType) [LineItemService](/ad-manager/api/reference/v202502/LineItemService.DeliveryRateType) **LineItemTemplateService** [ProposalLineItemService](/ad-manager/api/reference/v202502/ProposalLineItemService.DeliveryRateType) **Dependencies** \n[LineItemTemplate](/ad-manager/api/reference/v202502/LineItemTemplateService.LineItemTemplate) \n▼\n**DeliveryRateType**\n\nPossible delivery rates for a [LineItem](/ad-manager/api/reference/v202502/ForecastService.LineItem), which dictate the manner in\nwhich they are served.\n\n*** ** * ** ***\n\nNamespace\n:\n `https://www.google.com/apis/ads/publisher/v202502`\n\n| Enumeration | Description |\n|-----------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `EVENLY` | Line items are served as evenly as possible across the number of days specified in a line item's [LineItem.duration](/ad-manager/api/reference/v202502/ForecastService.LineItem#duration). |\n| `FRONTLOADED` | Line items are served more aggressively in the beginning of the flight date. |\n| `AS_FAST_AS_POSSIBLE` | The booked impressions for a line item may be delivered well before the [LineItem.endDateTime](/ad-manager/api/reference/v202502/ForecastService.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. |"]]
