externalMetricsPreference

The provider of the external metrics recommendation preference. Considers all applicable preferences that you might have set at the account and organization level.

If the preference is applied in the latest recommendation refresh, an object with a valid source value appears in the response. If the preference isn't applied to the recommendations already, then this object doesn't appear in the response.

To validate whether the preference is applied to your last generated set of recommendations, review the effectiveRecommendationPreferences value in the response of the GetEC2InstanceRecommendations actions.

For more information, see Enhanced infrastructure metrics in the Compute Optimizer User Guide.