How to Install the Signup Form on Squarespace
Step 1: Copy & paste the Prefinery JavaScript code into the Settings -> Advanced -> Code Injection -> Header page of your Squarespace account. Squarespace provides instructions on how to do this, here.
Step 2: Copy & paste the Prefinery form code into a Squarespace Code Block element.
Note: Squarespace requires a paid Business or Commerce plan in order to add custom JavaScript.