enum CustomFieldError.Reason (v202411)
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CustomFieldService
The reasons for the target error.
- Namespace
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https://www.google.com/apis/ads/publisher/v202411
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Last updated 2025-08-06 UTC.
[null,null,["Last updated 2025-08-06 UTC."],[[["\u003cp\u003eCustomFieldError outlines the reasons for errors related to custom fields in Google Ad Manager.\u003c/p\u003e\n"],["\u003cp\u003eIt includes reasons such as attempting to create an option for a custom field that doesn't support dropdowns.\u003c/p\u003e\n"],["\u003cp\u003eCustomFieldError uses a namespace specific to the Google Ad Manager API.\u003c/p\u003e\n"],["\u003cp\u003eThe 'UNKNOWN' reason is used when the actual error isn't exposed by the API version being used.\u003c/p\u003e\n"]]],["The core content details error reasons within the `CustomFieldService` API, specifically under `CustomFieldError.Reason`. It defines two error types: `INVALID_CUSTOM_FIELD_FOR_OPTION`, which occurs when creating a `CustomFieldOption` for a `CustomField` without the `DROPDOWN` data type, and `UNKNOWN`, which indicates a value not exposed by the current API version. These errors are associated with the namespace `https://www.google.com/apis/ads/publisher/v202411`.\n"],null,["# enum CustomFieldError.Reason (v202411)\n\n**Service** \n**CustomFieldService** **Dependencies** \n[CustomFieldError](/ad-manager/api/reference/v202411/CustomFieldService.CustomFieldError) \n▼\n**CustomFieldError.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| `INVALID_CUSTOM_FIELD_FOR_OPTION` | An attempt was made to create a [CustomFieldOption](/ad-manager/api/reference/v202411/CustomFieldService.CustomFieldOption) for a [CustomField](/ad-manager/api/reference/v202411/CustomFieldService.CustomField) that does not have [CustomFieldDataType.DROPDOWN](/ad-manager/api/reference/v202411/CustomFieldService.CustomFieldDataType#DROPDOWN). |\n| `UNKNOWN` | The value returned if the actual value is not exposed by the requested API version. |"]]
