AI-generated Key Takeaways
- 
          The content lists various Ad Manager API services with links to their StringFormatError.Reasondocumentation for version v202508.
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          It also includes a StringFormatErrordependency with a description of its reasons.
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          The StringFormatError.Reasonenumeration explains why a string format error might occur, with possible reasons includingUNKNOWN,ILLEGAL_CHARS, andINVALID_FORMAT.
The reasons for the target error.
- Namespace
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               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. |