> [!CAUTION]
> **Caution:** This documentation is for Google Ads API **v23** . The latest active version is [**v26**](https://developers.google.com/google-ads/api/reference/rpc/latest/GoalOptimizationEligibilityEnum.GoalOptimizationEligibility).

The possible goal optimization eligibility.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v23/enums/goal_optimization_eligibility.proto)

| Enums ||
|---|---|
| ## `ELIGIBLE` | The goal is eligible for campaign optimization. |
| ## `INELIGIBLE` | The goal is not eligible for campaign optimization. |
| ## `UNKNOWN` | The goal optimization status is not known in this version. |
| ## `UNSPECIFIED` | The goal optimization status has not been specified. |