[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-13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 TrafficForecastSegmentError.Reason (v202508)\n\n**Service** \n**AdjustmentService** **Dependencies** \n[TrafficForecastSegmentError](/ad-manager/api/reference/v202508/AdjustmentService.TrafficForecastSegmentError) \n▼\n**TrafficForecastSegmentError...**\n\nError reason types for [TrafficForecastSegmentError](/ad-manager/api/reference/v202508/AdjustmentService.TrafficForecastSegmentError).\n\n*** ** * ** ***\n\nNamespace\n:\n `https://www.google.com/apis/ads/publisher/v202508`\n\n| Enumeration | Description |\n|------------------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `CANNOT_UPDATE_TARGETING_AFTER_CREATION` | Segment targeting cannot be changed after segment creation. |\n| `TARGETING_NOT_UNIQUE` | The targeting expression that defines the segment is not unique within the given network's segments. The ID of the colliding segment will be provided in the [ApiError.trigger](/ad-manager/api/reference/v202508/AdjustmentService.ApiError#trigger). |\n| `UNKNOWN` | The value returned if the actual value is not exposed by the requested API version. |"]]
