AI-generated Key Takeaways
- 
          
The page lists various services available in the Google Ad Manager API, version v202508.
 - 
          
Each service is linked to its reference documentation for the
RequiredCollectionError.Reason. - 
          
The
RequiredCollectionError.Reasonenumeration defines possible reasons for errors related to collection size or presence. - 
          
The defined reasons for
RequiredCollectionErrorincludeREQUIRED,TOO_LARGE,TOO_SMALL, andUNKNOWN. 
- Namespace
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https://www.google.com/apis/ads/publisher/v202508 
| Enumeration | Description | 
|---|---|
                        REQUIRED
                      | 
                     A required collection is missing. | 
                        TOO_LARGE
                      | 
                     Collection size is too large. | 
                        TOO_SMALL
                      | 
                     Collection size is too small. | 
                        UNKNOWN
                      | 
                     The value returned if the actual value is not exposed by the requested API version. |