Enum describing possible shared set errors.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v25/errors/shared_set_error.proto)

| Enums ||
|---|---|
| ## `CUSTOMER_CANNOT_CREATE_SHARED_SET_OF_THIS_TYPE` | The customer cannot create this type of shared set. |
| ## `DUPLICATE_NAME` | A shared set with this name already exists. |
| ## `SHARED_SET_IN_USE` | The shared set cannot be removed because it is in use. |
| ## `SHARED_SET_REMOVED` | Removed shared sets cannot be mutated. |
| ## `UNKNOWN` | The received error code is not known in this version. |
| ## `UNSPECIFIED` | Enum unspecified. |