[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-13 UTC."],[],[],null,["# enum RequiredSizeError.Reason (v202508)\n\n**Service** \n[CreativeService](/ad-manager/api/reference/v202508/CreativeService.RequiredSizeError.Reason) [CreativeSetService](/ad-manager/api/reference/v202508/CreativeSetService.RequiredSizeError.Reason) [ForecastService](/ad-manager/api/reference/v202508/ForecastService.RequiredSizeError.Reason) [LineItemCreativeAssociationService](/ad-manager/api/reference/v202508/LineItemCreativeAssociationService.RequiredSizeError.Reason) [LineItemService](/ad-manager/api/reference/v202508/LineItemService.RequiredSizeError.Reason) [LineItemTemplateService](/ad-manager/api/reference/v202508/LineItemTemplateService.RequiredSizeError.Reason) [NativeStyleService](/ad-manager/api/reference/v202508/NativeStyleService.RequiredSizeError.Reason) [OrderService](/ad-manager/api/reference/v202508/OrderService.RequiredSizeError.Reason) **PublisherQueryLanguageService** **Dependencies** \n[RequiredSizeError](/ad-manager/api/reference/v202508/PublisherQueryLanguageService.RequiredSizeError) \n▼\n**RequiredSizeError.Reason**\n\n*** ** * ** ***\n\nNamespace\n:\n `https://www.google.com/apis/ads/publisher/v202508`\n\n| Enumeration | Description |\n|---------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `REQUIRED` | [Creative.size](/ad-manager/api/reference/v202508/CreativeService.Creative#size) or [LineItem.creativePlaceholders](/ad-manager/api/reference/v202508/ForecastService.LineItem#creativePlaceholders) size is missing. |\n| `NOT_ALLOWED` | [LineItemCreativeAssociation.sizes](/ad-manager/api/reference/v202508/LineItemCreativeAssociationService.LineItemCreativeAssociation#sizes) must be a subset of [LineItem.creativePlaceholders](/ad-manager/api/reference/v202508/ForecastService.LineItem#creativePlaceholders) sizes. |\n| `UNKNOWN` | The value returned if the actual value is not exposed by the requested API version. |"]]
