AI-generated Key Takeaways
- 
          The webpage provides a list of services within the Ad Manager API, specifically for version v202508. 
- 
          Each listed service links to its RequiredCollectionError.Reasondocumentation.
- 
          The page defines RequiredCollectionError.Reasonas an enumeration with four possible values:REQUIRED,TOO_LARGE,TOO_SMALL, andUNKNOWN.
- 
          These reasons describe different types of errors related to the size or presence of a required collection. 
- Namespace
- 
               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. |