> [!CAUTION]
> **Caution:** This documentation is for Google Ads API **v24** . The latest active version is [**v26**](https://developers.google.com/google-ads/api/reference/rpc/latest/EffectiveFrequencyBreakdown).

A breakdown of the number of unique people reached at a given effective frequency.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v24/services/reach_plan_service.proto)

| Fields ||
|---|---|
| ## `effective_coview_reach` | `int64` The number of users (including co-viewing users) reached for the associated effective_frequency value. |
| ## `effective_frequency` | `int32` The effective frequency \[1-10\]. |
| ## `on_target_effective_coview_reach` | `int64` The number of users (including co-viewing users) reached for the associated effective_frequency value within the specified plan demographic. |
| ## `on_target_reach` | `int64` The number of unique people reached at least effective_frequency times that exactly matches the Targeting. Note that a minimum number of unique people must be reached in order for data to be reported. If the minimum number is not met, the on_target_reach value will be rounded to 0. |
| ## `total_reach` | `int64` Total number of unique people reached at least effective_frequency times. This includes people that may fall outside the specified Targeting. Note that a minimum number of unique people must be reached in order for data to be reported. If the minimum number is not met, the total_reach value will be rounded to 0. |