Does insertRecords method of Zoho API supports custom modules?

Does insertRecords method of Zoho API supports custom modules?

I tried what you have suggested above. But that is also not working. Below is my code:

<CustomModule1>
<row no="1">
<FL val="CustomModule1 Template Message">Your appointment has now been confirmed. Thanks</FL>
<FL val="CustomModule1 Custom SMS Message">This is a custom message</FL>
<FL val="CustomModule1 SMS Text Name">Thanks</FL>
<FL val="CustomModule1 Email Opt Out">0</FL>
<FL val="CustomModule1 Contact"> contact@company.com</FL>
<FL val="CustomModule1 Lead"> lead@company.com</FL>
<FL val="CustomModule1 SMS Text Owner"> sms@company.com</FL>
</row>
</CustomModule1>


Can you please tell what is going wrong in this as I am also getting same error message "Unable to populate data, please check if mandatory value is entered correctly."