Recommendation to improve the asset group strength of a Performance Max campaign to an "Excellent" rating.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v26/resources/recommendation.proto)

| Fields ||
|---|---|
| ## `ad_strength` | `https://developers.google.com/google-ads/api/reference/rpc/v26/AdStrengthEnum.AdStrength` Output only. The current ad strength score of the asset group. |
| ## `asset_group` | `string` Output only. The asset group resource name. |