If the request contained invalid content, the API will return the following message as an error back to the client.
- API Key Not Found
- Authentication Failed
- Invalid Email Length
- Invalid Email Format
- Exceed Daily Insert Limit
- Email Existed
- Sub Categories Must Be Integer
- Sub Categories Not Exist
- Please specific Custom Fields Key Parameter
- Please specific Custom Fields Value Parameter
- Custom Field Not Numeric
- Custom Field Not Unique
- Invalid Date Time Format
- Custom Field From Date cannot larger than To Date
- Invalid Date Time Format
- Invalid Phone Number Format
- Exceed Field Length
- Value not found for drop down
- Duplicate value found in checkbox
- Value not found for checkbox
- Custom Key Field not found
- Duplicate Custom Key