Enum describing possible goal 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/goal_error.proto)

| Enums ||
|---|---|
| ## `CUSTOMER_LIFECYCLE_OPTIMIZATION_ACCOUNT_TYPE_NOT_ALLOWED` | Only Google Ads account can have customer lifecycle optimization goal. |
| ## `HIGH_LIFETIME_VALUE_LESS_THAN_OR_EQUAL_TO_VALUE` | When using customer lifecycle optimization goal, high lifetime value should be greater than value. |
| ## `HIGH_LIFETIME_VALUE_MULTIPLIER_LESS_THAN_OR_EQUAL_TO_VALUE_MULTIPLIER` | When using the customer lifecycle optimization goal, the high lifetime value multiplier must be strictly greater than the value multiplier. |
| ## `HIGH_LIFETIME_VALUE_MULTIPLIER_PRESENT_BUT_VALUE_MULTIPLIER_ABSENT` | When using the customer lifecycle optimization goal, the value multiplier must be present if the high lifetime value multiplier is present. |
| ## `HIGH_LIFETIME_VALUE_PRESENT_BUT_VALUE_ABSENT` | When using customer lifecycle optimization goal, if high lifetime value is present then value should be present. |
| ## `LOYALTY_RETENTION_GOAL_ALREADY_EXISTS` | Loyalty retention goal already exists. |
| ## `NEW_CUSTOMER_ACQUISITION_GOAL_ALREADY_EXISTS` | New customer acquisition goal already exists. |
| ## `RETENTION_GOAL_ALREADY_EXISTS` | Retention goal already exists. |
| ## `UNKNOWN` | The received error code is not known in this version. |
| ## `UNSPECIFIED` | Enum unspecified. |