If you use a form which is made by a non-zoho product, a list below would be useful.
I share you a list of the field formats supported by Zoho SalesIQ below, because if you want to take a data from your form to SalesIQ collectly, you have to edit a field attribute names of your form to a field name which SalesIQ support.
Name-> "name", "yourname", "subscribername", "contactname", "customername"
Email-> "email", "emailid", "youremail","contactemail", "subscriberemail", "mail", "customeremail"
I wish the list I shared could help you.