Enum describing possible errors from applying a keyword plan ad group.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v26/errors/keyword_plan_ad_group_error.proto)

| Enums ||
|---|---|
| ## `DUPLICATE_NAME` | The keyword plan ad group name is duplicate to an existing keyword plan AdGroup name or other keyword plan AdGroup name in the request. |
| ## `INVALID_NAME` | The keyword plan ad group name is missing, empty, longer than allowed limit or contains invalid chars. |
| ## `UNKNOWN` | The received error code is not known in this version. |
| ## `UNSPECIFIED` | Enum unspecified. |