AI-generated Key Takeaways
- 
          The webpage details the RequiredCollectionErrorwithin the context of various advertising services, particularly highlighting its association with theLineItemTemplateService.
- 
          The RequiredCollectionErroris part of a larger inheritance hierarchy, stemming fromApiErrorand encompassing numerous specific error types.
- 
          The RequiredCollectionErroris used for validating the sizes of collections and can occur when a required collection is missing, too large, or too small.
- 
          Key fields for ApiErrorandRequiredCollectionErrorincludefieldPath,fieldPathElements,trigger,errorString, andreason, which provide details about the error's cause and context.
- 
          The namespace for these services and errors is https://www.google.com/apis/ads/publisher/v202502.
A list of all errors to be used for validating sizes of collections.
- Namespace
- 
               https://www.google.com/apis/ads/publisher/v202502
| Field | |
|---|---|
| ApiError(inherited) | |
| 
                            | 
                            The OGNL field path to identify cause of error. | 
| 
                            | A parsed copy of the field path. For example, the field path "operations[1].operand" corresponds to this list: {FieldPathElement(field = "operations", index = 1), FieldPathElement(field = "operand", index = null)}. | 
| 
                            | 
                            The data that caused the error. | 
| 
                            | 
                            A simple string representation of the error and reason. | 
| RequiredCollectionError | |
| 
                            | 
                            
 Enumerations 
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