| E106 | Improper callback object |
| E107 | Only GET and POST methods are allowed for callback |
| E110 | You have a low balance in your account. Check and add the credits to proceed. |
| E401 | The SMS length is exceeding 4000 characters. Keep the characters below the maximum limit and re-execute the command. |
| E402 | Invalid schedule time. Minimum 5 minutes time gap is required and 3 months from now. |
| E404 | You cannot send the OTP type message to multiple numbers in one go. |
| E405 | You cannot send the TXN type message to more than 100 numbers in a single attempt. |
| E406 | Invalid Mobile Number. Enter the appropriate Mobile Number and re-execute the command. |
| E413 | The Body parameter is mandatory. |
| E413 | The Sender ID is missing in the request. Include an ID and proceed. |
| E413 | The To parameter is missing. Include the parameter, set the value, and re-execute the command. |
| E413 | The Campaign name should contain only alphanumeric. |
| E413 | Invalid or In-Correct input for passing HTML tags in parameters. |
| E414 | For the MKT type, you cannot add more than 5000 mobile numbers. |
| E418 | Invalid or In-Correct Sender ID |
| E421 | Invalid or In-Correct recipient (From) number. |
| E425 | The Channel can be either WhatsApp/SMS. |
| E601 | The Body field cannot be empty. |
| E604 | The Unicode must contain only 0, 1, or AUTO. |
| E606 | The Flash parameter can contain only 1 or 0. |
| E607 | The Campaign name should contain only alphanumeric. |
| E611 | The Type parameter is missing in the request. |
| E616 | The Sender field has to be filled. |
| E622 | The Type has to be either OTP, MKT, TXN, TXND, and M2M. |
| E631 | The Body field cannot be an array. |
| E907 | At least one of the parameters with To-number or To needs to be passed. |
| E908 | The To-number passed should be in E164 format. |
| MSG500 | Request not processed. Please try again after some time. |
