AI-generated Key Takeaways
- 
          The content lists numerous Ad Manager API services and their reference links for version v202508. 
- 
          Each service link points to documentation about the StringFormatError.Reason for that specific service. 
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          A detailed enumeration for StringFormatError.Reason is provided, outlining possible reasons like UNKNOWN, ILLEGAL_CHARS, and INVALID_FORMAT. 
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          The content focuses on error handling within the Ad Manager API, specifically related to string formatting issues. 
The reasons for the target error.
- Namespace
- 
               https://www.google.com/apis/ads/publisher/v202508
| Enumeration | Description | 
|---|---|
| UNKNOWN | |
| ILLEGAL_CHARS | The input string value contains disallowed characters. | 
| INVALID_FORMAT | The input string value is invalid for the associated field. |