How can I set the integration fields?

I've created a form, integrated it with Infusionsoft, but the First Names  of the people who are opting in isn't being forwarded to Infusionsoft.

I have checked your form and to my understanding, the email address field entry in your form appears in your Infusionsoft account but not the First Name field entry, is that correct?

I have tried to integrate a clone version of your form to our Infusionsoft account and I cannot reproduce the issue you are having.

Please make sure that the First Name field in your form is mapped correctly to the FirstName field in Infusionsoft.

Thank you.