| 400 | QuotaNotEnough | Quota not enough in this zone. | 此区域的配额不足。 | 诊断 |
| 400 | MissingParameter | Specified parameter is missing. | 缺少指定的参数。 | 诊断 |
| 403 | MissingParameter | The input parameter OwnerId,OwnerAccount that is mandatory for processing this request is not supplied. | 操作失败，必传参数 OwnerId 与 OwnerAccount 未传。 | 诊断 |
| 403 | Forbidden.SubUser | The specified action is not available for you. | 操作失败，权限不足。请更换高权限账户或申请权限。 | 诊断 |
| 400 | UnsupportedParameter | | - | 诊断 |
| 403 | Forbidden.RAM | User not authorized to operate on the specified resource, or this API doesn't support RAM. | - | 诊断 |
| 403 | Forbidden.NotSupportRAM | This action does not support accessed by RAM mode. | 操作失败，此操作不支持通过 RAM 模式访问。 | 诊断 |
| 403 | Forbidden.RiskControl | This operation is forbidden by Aliyun Risk Control system. | 阿里云风控系统禁止此操作。 | 诊断 |
| 503 | ServiceUnavailable | The request has failed due to a temporary failure of the server. | 由于服务器临时故障，请求失败。 | 诊断 |
| 400 | InsufficientBalance | Your account does not have enough balance. | 当前账户余额不足，请充值。 | 诊断 |
| 400 | IdempotentParameterMismatch | Request uses a client token in a previous request but is not identical to that request. | 操作失败，令牌不满足当前的请求操作。 | 诊断 |
| 403 | RealNameAuthenticationError | Your account has not passed the real-name authentication yet. | 当前的账号尚未通过实名认证。 | 诊断 |
| 500 | InternalError | The request processing has failed due to some unknown error, exception or failure. | 由于某些未知错误、异常或失败，请求处理失败。 | 诊断 |
| 400 | InvalidParameter | | - | 诊断 |
| 404 | Forbidden.ClusterNotFound | The specified cluster is not found, so we cann't get enough information to check permission in RAM. | - | 诊断 |
| 404 | InvalidDBClusterId.NotFound | The DBInstanceId provided does not exist in our records. | 当前的记录中不存在提供的DBClusterId。 | 诊断 |
| 404 | InvalidDBClusterId.NotFound | | 当前的记录中不存在提供的 DBClusterId。 | 诊断 |
| 404 | InvalidDBClusterId.NotFound | The DBClusterId provided does not exist in our records. | 当前的记录中不存在提供的 DBClusterId。 | 诊断 |
| 404 | InvalidRegionId.NotFound | The RegionId provided does not exist in our records. | 当前的记录中不存在提供的RegionId。 | 诊断 |
| 404 | InvalidZoneId.NotFound | The ZoneId provided does not exist in our records. | 当前的记录中不存在ZoneId。 | 诊断 |
| 404 | InvalidStatus.NotFound | The Status provided does not exist in our records. | 当前的记录中不存在提供的状态。 | 诊断 |
| 404 | InvalidClusterId.NotFound | The ClusterId provided does not exist in our records. | 当前的记录中不存在提供的DBClusterId。 | 诊断 |
| 400 | QuotaExceed.PostpayCluster | Living postpay clusters quota exceeded. | - | 诊断 |
| 403 | Forbidden.NotAdminUser | User not authorized to operate on the specified API as you are not the administrator. | 操作失败，仅管理员有权限操作该API。 | 诊断 |
| 403 | Forbidden.NotInvitedUser | User not in the invitation list. | 用户不在邀请列表中。 | 诊断 |
| 400 | ServiceNotSupported | The specified service is not supported. | 不支持指定的服务。 | 诊断 |
| 403 | OperationDenied.DBClusterStatus | The operation is not permitted due to status of cluster. | PolarDB集群当前状态下不允许执行该操作。 | 诊断 |
| 403 | OperationDenied.DBNodeType | The operation is not permitted due to type of node. | 操作失败，节点类型不允许此操作。 | 诊断 |
| 403 | OperationDenied.LockMode | The operation is not permitted due to lock of cluster. | PolarDB集群当前锁定状态下不允许执行该操作。 | 诊断 |
| 400 | InvalidPreferredBackupPeriod.Malformed | The specified parameter PreferredBackupPeriod is not valid. | 操作失败，数据备份周期（PreferredBackupPeriod）无效。 | 诊断 |
| 400 | InvalidPreferredBackupTime.Malformed | The specified parameter PreferredBackupTime is not valid. | 操作失败，执行自动备份的时间段（ PreferredBackupTime）无效。 | 诊断 |
| 403 | BackupTimesExceeded | Exceeding the daily backup times of this DB cluster. | - | 诊断 |
| 403 | BackupJobExists | A backup job already exists in the specified DB cluster. | 指定数据库集群中，已存在备份任务，请使用已存在的备份或者删除已有备份重新进行备份作业。 | 诊断 |
| 404 | InvalidBackupSetID.NotFound | Specified backup set ID does not exist. | 操作失败，指定的备份集ID不存在。 | 诊断 |
| 403 | IncorrectBackupSetState | Current backup set state does not support operations. | 操作失败，当前备份集状态不支持操作。 | 诊断 |
| 403 | BackupSetDeleteNotSupport | Current backup set dose not support delete operation. | 操作失败，当前自动备份集不支持删除操作。 | 诊断 |
| 400 | InvalidStartTime.Format | Specified start time is not valid. | 操作失败，指定的开始时间无效。 | 诊断 |
| 400 | InvalidParameterCombination | The end time must be greater than the start time. | 结束时间必须大于开始时间 | 诊断 |
| 400 | InvalidEndTime.Format | Specified end time is not valid. | 指定的结束时间无效。 | 诊断 |
| 404 | Forbidden.DBNodeClass | The DB cluster provided does not support MPP due to node class. | - | 诊断 |
| 404 | Forbidden.DBNodeNumber | The DB cluster provided does not support MPP due to the readonly node number. | - | 诊断 |
| 403 | OperationDenied.LossDasServiceLinkedRole | The operation is not permitted due to loss das service linked role. | 启用存储空间自动扩展前请先创建 DAS 服务关联角色。 | 诊断 |
| 403 | InsufficientResourceCapacity | The resource is out of usage, Please replace with another available zone. | 节点规格在该可用区资源不足，请更换其他可用区。 | 诊断 |