Clarification on Per-Keyword Forecast Metrics Deprecation & Alternatives

[Shraddha Kulkarni]

Dear Google Ads API Support Team,

I am currently working on a proof-of-concept (POC) that leverages the Keyword Planning API to generate keyword ideas and forecast metrics. While implementing this, I came across the following challenge and would like clarification:

• In API v21+, the KeywordPlanIdeaService.generate_keyword_forecast_metrics method only returns campaign-level aggregated forecasts (impressions, clicks, CPC, spend).
• In earlier versions (≤v20), we were able to obtain per-keyword forecast metrics using KeywordPlanService.generate_forecast_metrics, but this functionality was deprecated around v14 and fully removed in v21 (June 2023).

Given this change, I have the following questions:

1. Is there any alternative or recommended approach to obtain per-keyword forecast metrics in the current API versions?
2. If not available, does Google have plans to reintroduce per-keyword forecasts in future releases?
3. From a best-practice perspective, how should developers now handle scenarios where keyword-level forecasts are critical (e.g., campaign planning, bid optimization)?

My goal is to understand whether there is a supported solution or workaround for per-keyword forecasts, or if we should adapt to using only campaign-level aggregated forecasts going forward.

I appreciate your guidance on this matter.

Thank you 

Shraddha