Enum describing possible video campaign errors.

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

| Enums ||
|---|---|
| ## `MUTATE_REQUIRES_RESERVATION` | Cannot modify the video campaign without reservation. See <https://support.google.com/google-ads/answer/9547606>. |
| ## `UNKNOWN` | The received error code is not known in this version. |
| ## `UNSPECIFIED` | Enum unspecified. |