Duplicate and create custom new task

Hi, I am using Squarespace to host my website and I have a form on Squarespace to collect information (email,phone,budget, etc) and I want to send that to Asana as a new project using an existing template.

I am able to create a new project using the duplicate API call (creating a new project by duplicating a template project, thanks to Duplicate Custom Project Template with Zapier), however I dont know how to add the details from the form into the new Asana project… This is obviously a critical step for our team.

This seems so basic to get info on prospects and send that into Asana idk why it’s so painful.