Only one creative from a line item can serve at a time.
ONE_OR_MORE
Any number of creatives from a line item can serve together at a time.
AS_MANY_AS_POSSIBLE
As many creatives from a line item as can fit on a page will serve. This
could mean anywhere from one to all of a line item's creatives given the
size constraints of ad slots on a page.
ALL_ROADBLOCK
All or none of the creatives from a line item will serve. This option will only work if
served to a GPT tag using SRA (single request architecture mode).
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-06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."],[],[],null,["# enum RoadblockingType (v202505)\n\n**Service** \n**ForecastService** [LineItemService](/ad-manager/api/reference/v202505/LineItemService.RoadblockingType) [LineItemTemplateService](/ad-manager/api/reference/v202505/LineItemTemplateService.RoadblockingType) [ProposalLineItemService](/ad-manager/api/reference/v202505/ProposalLineItemService.RoadblockingType) **Dependencies** \n[LineItemSummary](/ad-manager/api/reference/v202505/ForecastService.LineItemSummary) [ProposalLineItem](/ad-manager/api/reference/v202505/ForecastService.ProposalLineItem) \n▼\n**RoadblockingType**\n\nDescribes the roadblocking types.\n\n*** ** * ** ***\n\nNamespace\n:\n `https://www.google.com/apis/ads/publisher/v202505`\n\n| Enumeration | Description |\n|-----------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `ONLY_ONE` | Only one creative from a line item can serve at a time. |\n| `ONE_OR_MORE` | Any number of creatives from a line item can serve together at a time. |\n| `AS_MANY_AS_POSSIBLE` | As many creatives from a line item as can fit on a page will serve. This could mean anywhere from one to all of a line item's creatives given the size constraints of ad slots on a page. |\n| `ALL_ROADBLOCK` | All or none of the creatives from a line item will serve. This option will only work if served to a GPT tag using SRA (single request architecture mode). |\n| `CREATIVE_SET` | A master/companion [CreativeSet](/ad-manager/api/reference/v202505/CreativeSetService.CreativeSet) roadblocking type. A [LineItem.creativePlaceholders](/ad-manager/api/reference/v202505/ForecastService.LineItem#creativePlaceholders) must be set accordingly. |"]]
