AI-generated Key Takeaways
- 
          BaseCustomFieldValue represents the value of a CustomField for a particular entity. 
- 
          This object is used by various services including CreativeService, ForecastService, LineItemService, OrderService, ProposalLineItemService, and ProposalService. 
- 
          The object has a required field customFieldIdwhich is the ID of the CustomField to which this value belongs.
- 
          BaseCustomFieldValue is the base class for CustomFieldValue and DropDownCustomFieldValue. 
The value of a CustomField for a particular entity.
- Namespace
- 
               https://www.google.com/apis/ads/publisher/v202502
| Field | |
|---|---|
| 
                            | 
                            Id of the  |