The following list contains the possible returned error codes and their descriptions.
| Error Code | Description |
| 0x1 | QSDK Server Internal Error |
| 0x2 | QSDK Server failed to submit request to CommServe |
| 0x3 | Unsupported command received by QSDK Server |
| 0x4 | Invalid request received by QSDK Server |
| 0x5 | Invalid Session Information received by QSDK Server |
| 0x6 | User logged out |
| 0x7 | QSDK Server encountered failure while preparing the CommServe request |
| 0x8 | QSDK Server encountered failure while sending the CommServe request |
| 0x9 | QSDK Server failed to find a connection to the CommServe, Relogin required |
| 0xA | Connection to the CommServe terminated, Relogin required |
| 0xB | CommServe failed to return Job ID |
| 0xC | CommServe failed to return data |
| 0x101 | Could not establish a connection with CommServe |
| 0x102 | QSDK Server encountered failure while receiving the CommServe's response |
| 0x103 | Invalid Login/Password |
| 0x104 | QSDK version not supported by CommServe |
| 0x105 | Login Retry count exceeded |
| 0x106 | No response from CommServe |
| 0x107 | Login Successful |
| 0x108 | Logout Successful |
| 0x109 | Another instance of the operation running |
| 0x10A | Connection to the CommServe terminated, Relogin required |
| 0x10B | User not logged in |
| 0x10C | Operation failed at CommServe |
| 0x10D | No response received from CommServe |
| 0x10E | Unsupported Application Type |
| 0x10F | Unsupported Backup options |
| 0x110 | Unsupported Restore options |
| 0x111 | Instance not specified |
| 0x112 | BackupSet not specified |
| 0x113 | Subclient not specified |
| 0x114 | QSDK Server not compatible with the CommServe |
| 0x115 | CommServe requires a new password for the user. Please use CommCell Console to renew the expired password. |
| 0x116 | Failed to restore DB |
| 0x117 | Failed to capture clients |
| 0x118 | Failed to merge clients |
| 0x119 | Failed to apply license |
| 0x120 | Failed to get CommServe time zone information |
| 0x201 | QSDK API Internal Error |
| 0x202 | Failed to connect to QSDK Server |
| 0x203 | HOME environment variable not set. Please export it and retry the command. |
| 0x204 | Failed to send request to QSDK Server |
| 0x205 | Failed to receive response from QSDK Server |
| 0x206 | No response received from QSDK Server |
| 0x207 | Invalid response received from QSDK Server |
| 0x208 | QSDKSession file corrupted, Relogin required |
| 0x209 | User not logged in |
| 0x20A | Failed to update QSDKSession file |
| 0x20B | Failed to delete QSDKSession file |
| 0x20C | Unable to determine QSDK Server name |
| 0x20D | Unable to determine VM name |
| 0x20E | CommServe name not specified |
| 0x301 | Unsupported option |
| 0x302 | Missing argument |
| 0x303 | Invalid argument |
| 0x305 | Invalid name length |
| 0x306 | Default backup set cannot be deleted |
| 0x307 | Cannot perform the operation on uninstalled client |
| 0x308 | Agent has been uninstalled, this operation is not allowed |
| 0x309 | On-demand Backupset creation is not supported for NetWare |
| 0x30A | Failed to open arguments file, %S, check option [%S] |
| 0x30B | Unable to open source paths file |
| 0x30C | Default Subclient cannot be deleted |
| 0x30D | Failed to read the answer file, %s, check option [%S]|[%s] |
| 0x30E | Failed to create answer file, %s, check option [%S]|[%s] |
| 0x30F | Specified storage policy is not an iDataAgent Backup storage policy |
| 0x310 | Invalid Password |
| 0x311 | User defined subclient cannot have / or \ as content |
| 0x312 | Specified storage policy is not a DataArchiver storage policy |
| 0x313 | User doesn't have rights to run CommCell Migration |
| 0x314 | Passwords did not match, please try again |
| 0x315 | Invalid Time format specified (dd/mm/yyyy hh:mm[:ss]) |
| 0x316 | Specified time is an invalid calendar time |
| 0x317 | Invalid time range specified, To time is less than From time |