AI-generated Key Takeaways
- 
          The document describes the CustomTargetingErrorand its inheritance fromApiError, listing various potential causes for this error related to custom targeting keys, values, and audience segments within the Google Ad Manager API.
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          It details the fields associated with ApiError(fieldPath, fieldPathElements, trigger, errorString) and the specificreasonfield forCustomTargetingError.
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          The reasonfield forCustomTargetingErrorprovides an extensive enumeration of specific error conditions, including issues with key and value properties, usage in targeting, and audience segment targeting limitations.
- Namespace
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               https://www.google.com/apis/ads/publisher/v202502
| Field | |
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| ApiError(inherited) | |
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| CustomTargetingError | |
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 Enumerations 
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