AI-generated Key Takeaways
- 
          CustomCreativeAssetlinks aCustomCreativewith an asset.
- 
          Associated assets can be placed into the creative's HTML using macros like %%FILE:macroName%%.
- 
          The macroNamefield specifies the name used to reference the asset in the HTML snippet.
- 
          The assetfield holds the actual asset, which is required, and can be viewed usingCreativeAsset.assetUrl.
A CustomCreativeAsset is an association between a CustomCreative and an asset.
            Any assets that are associated with a creative can be inserted into its HTML snippet.
- Namespace
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               https://www.google.com/apis/ads/publisher/v202508
| Field | |
|---|---|
| 
                            | 
                            The name by which the associated asset will be referenced. For example, if the value is "foo", then the asset can be inserted into an HTML snippet using the macro: "%%FILE:foo%%". | 
| 
                            | The asset. This attribute is required. To view the asset, use CreativeAsset.assetUrl. |