| Error Code | Description |
| 4000 | Please use Authtoken, instead of API ticket and APIkey. |
| 4500 | Internal server error while processing this request |
| 4501 | API Key is inactive |
| 4502 | This module is not supported in your edition |
| 4401 | Mandatory field missing |
| 4600 | Incorrect API parameter or API parameter value. Also check the method name and/or spelling errors in the API url. |
| 4820 | API call cannot be completed as you have exceeded the "rate limit". |
| 4831 | Missing parameters error |
| 4832 | Text value given for an Integer field |
| 4834 | Invalid ticket. Also check if ticket has expired. |
| 4835 | XML parsing error |
| 4890 | Wrong API Key |
| 4487 | No permission to convert lead. |
| 4001 | No API permission |
| 401 | No module permission |
| 401.1 | No permission to create a record |
| 401.2 | No permission to edit a record |
| 401.3 | No permission to delete a record |
| 4101 | Zoho CRM disabled |
| 4102 | No CRM account |
| 4103 | No record available with the specified record ID. |
| 4422 | No records available in the module |
| 4420 | Wrong value for search parameter and/or search parameter value. |
| 4421 | Number of API calls exceeded |
| 4423 | Exceeded record search limit |
| 4807 | Exceeded file size limit |
| 4424 | Invalid File Type |
| 4809 | Exceeded storage space limit |