FlashRedirectCreative.flashUrlandFlashRedirectCreative.fallbackUrlare the same. The fallback URL
is used when the flash URL does not work and must be different from it.
[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-06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."],[[["\u003cp\u003e\u003ccode\u003eCreativeError.Reason\u003c/code\u003e outlines the potential errors encountered when interacting with creatives in Google Ad Manager.\u003c/p\u003e\n"],["\u003cp\u003eErrors can arise from issues like mismatched URLs, invalid creative sizes, or unsupported creative types.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eCreativeError.Reason\u003c/code\u003e enumeration provides specific error codes for debugging and troubleshooting creative-related problems.\u003c/p\u003e\n"],["\u003cp\u003eSome errors pertain to legacy creative types or features that are no longer supported in Google Ad Manager.\u003c/p\u003e\n"],["\u003cp\u003eWhen encountering a \u003ccode\u003eCreativeError\u003c/code\u003e, refer to the documentation for the specific \u003ccode\u003eReason\u003c/code\u003e value to understand the cause and resolution.\u003c/p\u003e\n"]]],["The document details error reasons within the `CreativeError.Reason` namespace for ad management services. It lists possible issues, including mismatched URLs (`FLASH_AND_FALLBACK_URL_ARE_SAME`), incorrect destination URL usage (`DESTINATION_URL_NOT_EMPTY`), unsupported creative types, asset duplication (`DUPLICATE_ASSET_IN_CREATIVE`), and invalid company/creative sizes. Other errors are related to legacy creatives, programmatic creatives, hosted video creatives needing video asset, and cases where creatives in sets cannot be deactivated.\n"],null,["# enum CreativeError.Reason (v202411)\n\n**Service** \n[CreativeService](/ad-manager/api/reference/v202411/CreativeService.CreativeError.Reason) [CreativeSetService](/ad-manager/api/reference/v202411/CreativeSetService.CreativeError.Reason) **ForecastService** [LineItemCreativeAssociationService](/ad-manager/api/reference/v202411/LineItemCreativeAssociationService.CreativeError.Reason) [LineItemService](/ad-manager/api/reference/v202411/LineItemService.CreativeError.Reason) [LineItemTemplateService](/ad-manager/api/reference/v202411/LineItemTemplateService.CreativeError.Reason) [OrderService](/ad-manager/api/reference/v202411/OrderService.CreativeError.Reason) [PublisherQueryLanguageService](/ad-manager/api/reference/v202411/PublisherQueryLanguageService.CreativeError.Reason) **Dependencies** \n[CreativeError](/ad-manager/api/reference/v202411/ForecastService.CreativeError) \n▼\n**CreativeError.Reason**\n\nThe reasons for the target error.\n\n*** ** * ** ***\n\nNamespace\n:\n `https://www.google.com/apis/ads/publisher/v202411`\n\n| Enumeration | Description |\n|------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `FLASH_AND_FALLBACK_URL_ARE_SAME` | `FlashRedirectCreative.flashUrl` and `FlashRedirectCreative.fallbackUrl` are the same. The fallback URL is used when the flash URL does not work and must be different from it. |\n| `DESTINATION_URL_NOT_EMPTY` | [HasDestinationUrlCreative.destinationUrl](/ad-manager/api/reference/v202411/CreativeService.HasDestinationUrlCreative#destinationUrl) must be empty when its type is [DestinationUrlType.NONE](/ad-manager/api/reference/v202411/CreativeService.DestinationUrlType#NONE). |\n| `DESTINATION_URL_TYPE_NOT_SUPPORTED` | The provided [DestinationUrlType](/ad-manager/api/reference/v202411/CreativeService.DestinationUrlType) is not supported for the creative type it is being used on. |\n| `CANNOT_CREATE_OR_UPDATE_LEGACY_DFP_CREATIVE` | Cannot create or update legacy DART For Publishers creative. |\n| `CANNOT_CREATE_OR_UPDATE_LEGACY_DFP_MOBILE_CREATIVE` | Cannot create or update legacy mobile creative. |\n| `INVALID_COMPANY_TYPE` | Company type should be one of Advertisers, House Advertisers and Ad Networks. |\n| `INVALID_ADSENSE_CREATIVE_SIZE` | Invalid size for AdSense dynamic allocation creative. Only valid AFC sizes are allowed. |\n| `INVALID_AD_EXCHANGE_CREATIVE_SIZE` | Invalid size for Ad Exchange dynamic allocation creative. Only valid Ad Exchange sizes are allowed. |\n| `DUPLICATE_ASSET_IN_CREATIVE` | Assets associated with the same creative must be unique. |\n| `CREATIVE_ASSET_CANNOT_HAVE_ID_AND_BYTE_ARRAY` | A creative asset cannot contain an asset ID and a byte array. |\n| `CANNOT_CREATE_OR_UPDATE_UNSUPPORTED_CREATIVE` | Cannot create or update unsupported creative. |\n| `CANNOT_CREATE_PROGRAMMATIC_CREATIVES` | Cannot create programmatic creatives. |\n| `INVALID_SIZE_FOR_THIRD_PARTY_IMPRESSION_TRACKER` | A creative must have valid size to use the third-party impression tracker. |\n| `CANNOT_DEACTIVATE_CREATIVES_IN_CREATIVE_SETS` | Ineligible creatives can not be deactivated. |\n| `HOSTED_VIDEO_CREATIVE_REQUIRES_VIDEO_ASSET` | Ad Manager hosted video creatives must contain a video asset. |\n| `UNKNOWN` | The value returned if the actual value is not exposed by the requested API version. |"]]
