I would like to use value from Point 1 into Point 3 in order to set up event in AJO with email value. How to move value between different nodes from 1 to 3?

I tried that way:
1. Set up Data Element type of constant.

2. Update that Data Element Variable 1 in Point 1 like that:
const email = document.querySelector('input[name="email"]').value;
_satellite.setVar('Variable1', email)
3. Use the value from Point 1 in Point 3

I think I might miss something and it does not work. Any help?