Need Form Variables For Tracking

Hello,

Can you please provide me with the variables for the following fields for my forms? 

- First Name

- Last Name

- Email

Thank you,

If you want to capture the fields data externally, then you may refer to this guide: https://www.jotform.com/help/146-How-to-Find-Field-IDs-and-Names 

However, this works when you're sending the data via URL or using the POST method.