[[["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complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-13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 BillingError.Reason (v202508)\n\n**Service** \n[ProposalLineItemService](/ad-manager/api/reference/v202508/ProposalLineItemService.BillingError.Reason) **ProposalService** **Dependencies** \n[BillingError](/ad-manager/api/reference/v202508/ProposalService.BillingError) \n▼\n**BillingError.Reason**\n\nThe reasons for the target error.\n\n*** ** * ** ***\n\nNamespace\n:\n `https://www.google.com/apis/ads/publisher/v202508`\n\n| Enumeration | Description |\n|--------------------------------------|-------------------------------------------------------------------------------------|\n| `UNSUPPORTED_BILLING_SCHEDULE` | Found unsupported billing schedule. |\n| `UNSUPPORTED_BILLING_CAP` | Found unsupported billing cap. |\n| `MISSING_BILLING_SOURCE` | Billing source is missing when either billing scheule or billing cap is provided. |\n| `MISSING_BILLING_SCHEDULE` | Billing schedule is missing when the provided billing source is CONSTRACTED. |\n| `MISSING_BILLING_CAP` | Billing cap is missing when the provided billing source is not CONSTRACTED. |\n| `INVALID_BILLING_SOURCE_FOR_OFFLINE` | The billing source is invalid for offline proposal line item. |\n| `UPDATE_BILLING_NOT_ALLOWED` | Billing settings cannot be updated once the proposal has been approved. |\n| `MISSING_BILLING_BASE` | Billing base is missing when the provided billing source is CONTRACTED. |\n| `INVALID_BILLING_BASE` | The billing base is invalid for the provided billing source. |\n| `UNKNOWN` | The value returned if the actual value is not exposed by the requested API version. |"]]
