Unable to retrieve conversion metrics (by conversion time) when querying geographic data via Google Ads API

[RevoDev]

Issue:

I can successfully select and view the following dimensions and metrics together in the Google Ads Report Editor UI:

• Country/Region (matching)
• Conversions (by conversion time)
• Conversion value (by conversion time)

However, when attempting to retrieve the same data via the Google Ads API, I encounter compatibility issues. Regardless of which resource I query (geographic_view, user_location_view, or location_view), I am unable to use the following metrics:

• metrics.conversions (by conversion time)
• metrics.conversions_value (by conversion time)

Expected Behavior: The API should support the same dimension-metric combinations that are available in the UI Report Editor.

Current Behavior: The API returns an error or does not allow these metrics to be selected alongside geographic segmentation fields.

Request: Please clarify:

1. Whether this is a known limitation of the API
2. If there is an alternative approach or resource to retrieve conversion metrics (by conversion time) segmented by country/region via the API
3. If this functionality will be supported in future API versions

Thank you for your assistance.