Using variable data in the form

Are you planning to prepopulate the form with field values? If yes, then please use the Field Prepopulator App. Here's the link: http://prepopulate.jotform.io/.

You may also do it manually via the URL, here's a guide: https://www.jotform.com/help/71-Prepopulating-Fields-to-Your-JotForm-via-URL-Parameters.

If you want to pass field values from one form to another, please check this guide: https://www.jotform.com/help/351-How-to-Automatically-Pass-Form-Data-to-Another-Form.

Lastly, if you are planning to pass values from one field to another on the same form, refer to this guide: https://www.jotform.com/help/286-How-to-Pass-Field-Value-to-Another-Field.

If you are referring to a different issue, please let us know so that we can further assist you. Also, please provide more details about the issue you are having. Thank you.