[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-06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 LineItemActivityAssociationError.Reason (v202505)\n\n**Service** \n[ForecastService](/ad-manager/api/reference/v202505/ForecastService.LineItemActivityAssociationError.Reason) **LineItemService** [LineItemTemplateService](/ad-manager/api/reference/v202505/LineItemTemplateService.LineItemActivityAssociationError.Reason) [OrderService](/ad-manager/api/reference/v202505/OrderService.LineItemActivityAssociationError.Reason) **Dependencies** \n[LineItemActivityAssociation...](/ad-manager/api/reference/v202505/LineItemService.LineItemActivityAssociationError \"LineItemActivityAssociationError\") \n▼\n**LineItemActivityAssociation...**\n\nThe reasons for the target error.\n\n*** ** * ** ***\n\nNamespace\n:\n `https://www.google.com/apis/ads/publisher/v202505`\n\n| Enumeration | Description |\n|-------------------------------------|---------------------------------------------------------------------------------------------------------------|\n| `INVALID_ACTIVITY_FOR_ADVERTISER` | When associating an activity to a line item the activity must belong to the same advertiser as the line item. |\n| `INVALID_COST_TYPE_FOR_ASSOCIATION` | Activities can only be associated with line items of `CostType.CPA`. |\n| `UNKNOWN` | The value returned if the actual value is not exposed by the requested API version. |"]]
