AI-generated Key Takeaways
- 
          The document provides an enumeration of possible errors related to custom conversion goals. 
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          Errors cover scenarios like invalid or disabled conversion actions, duplicate goal names or action lists, and inability to remove linked goals. 
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          Certain non-biddable conversion types are not eligible for inclusion in custom goals. 
Enum describing possible custom conversion goal errors.
| Enums | |
|---|---|
| 
 | Enum unspecified. | 
| 
 | The received error code is not known in this version. | 
| 
 | Cannot find a conversion action with the specified id. | 
| 
 | The conversion action is not enabled so it cannot be included in a custom conversion goal. | 
| 
 | The custom conversion goal cannot be removed because it's linked to a campaign. | 
| 
 | Custom goal with the same name already exists. | 
| 
 | Custom goal with the same conversion action list already exists. | 
| 
 | Conversion types that cannot be biddable should not be included in custom goal. |