All error codes will be based on SMPP v3.4 (5.1.3 command_status) with the exception of the following extended error codes:
| ERROR CODE | DESCRIPTION |
| 0x00000410 | Account does not have sufficient credit balance |
| 0x00000411 | Prepaid Account has expired |
| 0x00000414 | Could not route message due to account limitations |
| 0x00000415 | Could not route message |
| 0x00000416 | Spam Control threshold exceeded |