AI-generated Key Takeaways
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          Enum describes possible errors from applying a keyword plan ad group. 
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          Errors include unspecified, unknown, invalid name, and duplicate name. 
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          Invalid names are missing, empty, too long, or contain invalid characters. 
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          Duplicate names match existing or other requested keyword plan AdGroup names. 
Enum describing possible errors from applying a keyword plan ad group.
| Enums | |
|---|---|
| 
 | Enum unspecified. | 
| 
 | The received error code is not known in this version. | 
| 
 | The keyword plan ad group name is missing, empty, longer than allowed limit or contains invalid chars. | 
| 
 | The keyword plan ad group name is duplicate to an existing keyword plan AdGroup name or other keyword plan AdGroup name in the request. |