AI-generated Key Takeaways
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The content lists various Ad Manager API services for the v202508 version.
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It provides links to the documentation for each listed service, specifically referencing the
StringFormatError.Reasonfor each. - 
          
The
StringFormatError.Reasonprovides explanations for why a string format error might occur, including unknown reasons, illegal characters, and invalid formats. 
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. |